Conversion options explorer

7Z 6 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
encrypt_password	string	—	—	A password to encrypt the archive
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

BZ2 5 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

GZ 5 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

ZIP 6 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
encrypt_password	string	—	—	A password to encrypt the archive
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

AAC 18 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
audio_bitrate	integer	—	6, 8, 12, 16, 24, 32, 48, 56, 64, 96, 112, 128, 160, 192, 224, 256, 320	Audio bitrate in kbps.
audio_codec	string	—	aac, heaac1, heaac2	Sets the audio codec
channels	string	—	stereo, mono	Audio channels.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
end	string	—	^\d\d:\d\d:\d\d$	Sets the end point of the part of the video you want to keep. The format is HH:MM:SS. HH = hour, MM = minutes, SS = seconds. Example 00:05:35
frequency	integer	—	8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000	Audio frequency in Hz.
language_tts	string	—	ar-SA, bg-BG, ca-ES, cs-CZ, da-DK, de-CH, de-DE, el-GR, en-AU, en-CA, en-GB, en-IE, en-IN, en-US, es-ES, es-MX, fi-FI, fr-CA, fr-CH, fr-FR, hi-IN, hr-HR, hu-HU, id-ID, it-IT, ja-JP, nb-NO, nl-BE, nl-NL, pl-PL, pt-BR, pt-PT, ro-RO, ru-RU, sv-SE, ta-IN, tr-TR, vi-VN, zh-CN, zh-HK	Language of the speaker
normalize	boolean		—	Normalize the audio volume.
normalize_loudness_range_target_ebu	number	—	1–50	EBU Loudness Range Target in LUFS (default 7.0). Ignored if normalize_type is not ebu.
normalize_target_level	integer	—	-99–0	Normalization target level in dB/LUFS (default -23). Ignored when normalize_type=ebu.
normalize_target_level_ebu	number	—	-70–-5	Integrated Loudness Target in LUFS. Ignored if normalize_type is not ebu.
normalize_true_peak_ebu	number	—	-9–0	EBU Maximum True Peak in dBTP (default -2.0). Ignored if normalize_type is not ebu.
normalize_type	string	—	ebu, rms, peak	Normalization type, brings the signal to the specified RMS or peak level, or applies EBU R128 for broadcasting.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
start	string	—	^\d\d:\d\d:\d\d$	Sets the start point of the part of the video you want to keep. The format is HH:MM:SS. HH = hour, MM = minutes, SS = seconds. Example 00:02:23

AIFF 17 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
audio_bitrate	integer	—	6, 8, 12, 16, 24, 32, 48, 56, 64, 96, 112, 128, 160, 192, 224, 256, 320	Audio bitrate in kbps.
channels	string	—	stereo, mono	Audio channels.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
end	string	—	^\d\d:\d\d:\d\d$	Sets the end point of the part of the video you want to keep. The format is HH:MM:SS. HH = hour, MM = minutes, SS = seconds. Example 00:05:35
frequency	integer	—	1000, 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000	Audio frequency in Hz.
language_tts	string	—	ar-SA, bg-BG, ca-ES, cs-CZ, da-DK, de-CH, de-DE, el-GR, en-AU, en-CA, en-GB, en-IE, en-IN, en-US, es-ES, es-MX, fi-FI, fr-CA, fr-CH, fr-FR, hi-IN, hr-HR, hu-HU, id-ID, it-IT, ja-JP, nb-NO, nl-BE, nl-NL, pl-PL, pt-BR, pt-PT, ro-RO, ru-RU, sv-SE, ta-IN, tr-TR, vi-VN, zh-CN, zh-HK	Language of the speaker
normalize	boolean		—	Normalize the audio volume.
normalize_loudness_range_target_ebu	number	—	1–50	EBU Loudness Range Target in LUFS (default 7.0). Ignored if normalize_type is not ebu.
normalize_target_level	integer	—	-99–0	Normalization target level in dB/LUFS (default -23). Ignored when normalize_type=ebu.
normalize_target_level_ebu	number	—	-70–-5	Integrated Loudness Target in LUFS. Ignored if normalize_type is not ebu.
normalize_true_peak_ebu	number	—	-9–0	EBU Maximum True Peak in dBTP (default -2.0). Ignored if normalize_type is not ebu.
normalize_type	string	—	ebu, rms, peak	Normalization type, brings the signal to the specified RMS or peak level, or applies EBU R128 for broadcasting.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
start	string	—	^\d\d:\d\d:\d\d$	Sets the start point of the part of the video you want to keep. The format is HH:MM:SS. HH = hour, MM = minutes, SS = seconds. Example 00:02:23

FLAC 17 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
audio_bitdepth	integer	—	8, 16, 24, 32	Change bit depth resolution
channels	string	—	stereo, mono	Audio channels.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
end	string	—	^\d\d:\d\d:\d\d$	Sets the end point of the part of the video you want to keep. The format is HH:MM:SS. HH = hour, MM = minutes, SS = seconds. Example 00:05:35
frequency	integer	—	1000, 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000	Audio frequency in Hz.
language_tts	string	—	ar-SA, bg-BG, ca-ES, cs-CZ, da-DK, de-CH, de-DE, el-GR, en-AU, en-CA, en-GB, en-IE, en-IN, en-US, es-ES, es-MX, fi-FI, fr-CA, fr-CH, fr-FR, hi-IN, hr-HR, hu-HU, id-ID, it-IT, ja-JP, nb-NO, nl-BE, nl-NL, pl-PL, pt-BR, pt-PT, ro-RO, ru-RU, sv-SE, ta-IN, tr-TR, vi-VN, zh-CN, zh-HK	Language of the speaker
normalize	boolean		—	Normalize the audio volume.
normalize_loudness_range_target_ebu	number	—	1–50	EBU Loudness Range Target in LUFS (default 7.0). Ignored if normalize_type is not ebu.
normalize_target_level	integer	—	-99–0	Normalization target level in dB/LUFS (default -23). Ignored when normalize_type=ebu.
normalize_target_level_ebu	number	—	-70–-5	Integrated Loudness Target in LUFS. Ignored if normalize_type is not ebu.
normalize_true_peak_ebu	number	—	-9–0	EBU Maximum True Peak in dBTP (default -2.0). Ignored if normalize_type is not ebu.
normalize_type	string	—	ebu, rms, peak	Normalization type, brings the signal to the specified RMS or peak level, or applies EBU R128 for broadcasting.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
start	string	—	^\d\d:\d\d:\d\d$	Sets the start point of the part of the video you want to keep. The format is HH:MM:SS. HH = hour, MM = minutes, SS = seconds. Example 00:02:23

M4A 18 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
audio_bitrate	integer	—	6, 8, 12, 16, 24, 32, 48, 56, 64, 96, 112, 128, 160, 192, 224, 256, 320	Audio bitrate in kbps. It can be used with the aac audio codec only.
audio_codec	string	—	aac, heaac1, heaac2, alac, copy	Sets the audio codec
channels	string	—	stereo, mono	Audio channels.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
end	string	—	^\d\d:\d\d:\d\d$	Sets the end point of the part of the video you want to keep. The format is HH:MM:SS. HH = hour, MM = minutes, SS = seconds. Example 00:05:35
frequency	integer	—	1000, 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000	Audio frequency in Hz.
language_tts	string	—	ar-SA, bg-BG, ca-ES, cs-CZ, da-DK, de-CH, de-DE, el-GR, en-AU, en-CA, en-GB, en-IE, en-IN, en-US, es-ES, es-MX, fi-FI, fr-CA, fr-CH, fr-FR, hi-IN, hr-HR, hu-HU, id-ID, it-IT, ja-JP, nb-NO, nl-BE, nl-NL, pl-PL, pt-BR, pt-PT, ro-RO, ru-RU, sv-SE, ta-IN, tr-TR, vi-VN, zh-CN, zh-HK	Language of the speaker
normalize	boolean		—	Normalize the audio volume.
normalize_loudness_range_target_ebu	number	—	1–50	EBU Loudness Range Target in LUFS (default 7.0). Ignored if normalize_type is not ebu.
normalize_target_level	integer	—	-99–0	Normalization target level in dB/LUFS (default -23). Ignored when normalize_type=ebu.
normalize_target_level_ebu	number	—	-70–-5	Integrated Loudness Target in LUFS. Ignored if normalize_type is not ebu.
normalize_true_peak_ebu	number	—	-9–0	EBU Maximum True Peak in dBTP (default -2.0). Ignored if normalize_type is not ebu.
normalize_type	string	—	ebu, rms, peak	Normalization type, brings the signal to the specified RMS or peak level, or applies EBU R128 for broadcasting.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
start	string	—	^\d\d:\d\d:\d\d$	Sets the start point of the part of the video you want to keep. The format is HH:MM:SS. HH = hour, MM = minutes, SS = seconds. Example 00:02:23

M4R 17 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
audio_codec	string	—	aac, heaac1, heaac2, alac, copy	Sets the audio codec
channels	string	—	stereo, mono	Audio channels.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
end	string	—	^\d\d:\d\d:\d\d$	Sets the end point of the part of the video you want to keep. The format is HH:MM:SS. HH = hour, MM = minutes, SS = seconds. Example 00:05:35
frequency	integer	—	1000, 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000	Audio frequency in Hz.
language_tts	string	—	ar-SA, bg-BG, ca-ES, cs-CZ, da-DK, de-CH, de-DE, el-GR, en-AU, en-CA, en-GB, en-IE, en-IN, en-US, es-ES, es-MX, fi-FI, fr-CA, fr-CH, fr-FR, hi-IN, hr-HR, hu-HU, id-ID, it-IT, ja-JP, nb-NO, nl-BE, nl-NL, pl-PL, pt-BR, pt-PT, ro-RO, ru-RU, sv-SE, ta-IN, tr-TR, vi-VN, zh-CN, zh-HK	Language of the speaker
normalize	boolean		—	Normalize the audio volume.
normalize_loudness_range_target_ebu	number	—	1–50	EBU Loudness Range Target in LUFS (default 7.0). Ignored if normalize_type is not ebu.
normalize_target_level	integer	—	-99–0	Normalization target level in dB/LUFS (default -23). Ignored when normalize_type=ebu.
normalize_target_level_ebu	number	—	-70–-5	Integrated Loudness Target in LUFS. Ignored if normalize_type is not ebu.
normalize_true_peak_ebu	number	—	-9–0	EBU Maximum True Peak in dBTP (default -2.0). Ignored if normalize_type is not ebu.
normalize_type	string	—	ebu, rms, peak	Normalization type, brings the signal to the specified RMS or peak level, or applies EBU R128 for broadcasting.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
start	string	—	^\d\d:\d\d:\d\d$	Sets the start point of the part of the video you want to keep. The format is HH:MM:SS. HH = hour, MM = minutes, SS = seconds. Example 00:02:23

MMF 16 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
audio_bitrate	integer	—	6, 8, 12, 16, 24, 32, 48, 56, 64, 96, 112, 128, 160, 192, 224, 256, 320	Audio bitrate in kbps.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
end	string	—	^\d\d:\d\d:\d\d$	Sets the end point of the part of the video you want to keep. The format is HH:MM:SS. HH = hour, MM = minutes, SS = seconds. Example 00:05:35
frequency	integer	—	4000, 8000, 11025, 22050, 44100	Audio frequency in Hz.
language_tts	string	—	ar-SA, bg-BG, ca-ES, cs-CZ, da-DK, de-CH, de-DE, el-GR, en-AU, en-CA, en-GB, en-IE, en-IN, en-US, es-ES, es-MX, fi-FI, fr-CA, fr-CH, fr-FR, hi-IN, hr-HR, hu-HU, id-ID, it-IT, ja-JP, nb-NO, nl-BE, nl-NL, pl-PL, pt-BR, pt-PT, ro-RO, ru-RU, sv-SE, ta-IN, tr-TR, vi-VN, zh-CN, zh-HK	Language of the speaker
normalize	boolean		—	Normalize the audio volume.
normalize_loudness_range_target_ebu	number	—	1–50	EBU Loudness Range Target in LUFS (default 7.0). Ignored if normalize_type is not ebu.
normalize_target_level	integer	—	-99–0	Normalization target level in dB/LUFS (default -23). Ignored when normalize_type=ebu.
normalize_target_level_ebu	number	—	-70–-5	Integrated Loudness Target in LUFS. Ignored if normalize_type is not ebu.
normalize_true_peak_ebu	number	—	-9–0	EBU Maximum True Peak in dBTP (default -2.0). Ignored if normalize_type is not ebu.
normalize_type	string	—	ebu, rms, peak	Normalization type, brings the signal to the specified RMS or peak level, or applies EBU R128 for broadcasting.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
start	string	—	^\d\d:\d\d:\d\d$	Sets the start point of the part of the video you want to keep. The format is HH:MM:SS. HH = hour, MM = minutes, SS = seconds. Example 00:02:23

MP3 19 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
audio_bitrate	integer	—	8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160, 192, 224, 256, 320	Audio bitrate in kbps.
audio_vbr	integer	—	65, 85, 100, 115, 130, 160, 165, 175, 190, 225, 245	If selected, a variable bitrate conversion is processed. The values are the average bitrate in kbit/s.
channels	string	—	stereo, mono	Audio channels.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
end	string	—	^\d\d:\d\d:\d\d$	Sets the end point of the part of the video you want to keep. The format is HH:MM:SS. HH = hour, MM = minutes, SS = seconds. Example 00:05:35
frequency	integer	—	8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000	Audio frequency in Hz.
language_tts	string	—	ar-SA, bg-BG, ca-ES, cs-CZ, da-DK, de-CH, de-DE, el-GR, en-AU, en-CA, en-GB, en-IE, en-IN, en-US, es-ES, es-MX, fi-FI, fr-CA, fr-CH, fr-FR, hi-IN, hr-HR, hu-HU, id-ID, it-IT, ja-JP, nb-NO, nl-BE, nl-NL, pl-PL, pt-BR, pt-PT, ro-RO, ru-RU, sv-SE, ta-IN, tr-TR, vi-VN, zh-CN, zh-HK	Language of the speaker
normalize	boolean		—	Normalize the audio volume.
normalize_loudness_range_target_ebu	number	—	1–50	EBU Loudness Range Target in LUFS (default 7.0). Ignored if normalize_type is not ebu.
normalize_target_level	integer	—	-99–0	Normalization target level in dB/LUFS (default -23). Ignored when normalize_type=ebu.
normalize_target_level_ebu	number	—	-70–-5	Integrated Loudness Target in LUFS. Ignored if normalize_type is not ebu.
normalize_true_peak_ebu	number	—	-9–0	EBU Maximum True Peak in dBTP (default -2.0). Ignored if normalize_type is not ebu.
normalize_type	string	—	ebu, rms, peak	Normalization type, brings the signal to the specified RMS or peak level, or applies EBU R128 for broadcasting.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
remove_coverart	boolean		—	Remove the cover art image
start	string	—	^\d\d:\d\d:\d\d$	Sets the start point of the part of the video you want to keep. The format is HH:MM:SS. HH = hour, MM = minutes, SS = seconds. Example 00:02:23

OGG 19 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
audio_bitrate	integer	—	6, 8, 12, 16, 24, 32, 44, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 500	Audio bitrate in kbps.
audio_codec	string	—	flac, opus, speex, vorbis, copy	Sets the audio codec
audio_vbr	integer	—	64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 500	If selected, a variable bitrate conversion is processed. The values are the average bitrate in kbit/s per stereo channel. Only working for vorbis.
channels	string	—	stereo, mono	Audio channels.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
end	string	—	^\d\d:\d\d:\d\d$	Sets the end point of the part of the video you want to keep. The format is HH:MM:SS. HH = hour, MM = minutes, SS = seconds. Example 00:05:35
frequency	integer	—	8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 96000	Audio frequency in Hz.
language_tts	string	—	ar-SA, bg-BG, ca-ES, cs-CZ, da-DK, de-CH, de-DE, el-GR, en-AU, en-CA, en-GB, en-IE, en-IN, en-US, es-ES, es-MX, fi-FI, fr-CA, fr-CH, fr-FR, hi-IN, hr-HR, hu-HU, id-ID, it-IT, ja-JP, nb-NO, nl-BE, nl-NL, pl-PL, pt-BR, pt-PT, ro-RO, ru-RU, sv-SE, ta-IN, tr-TR, vi-VN, zh-CN, zh-HK	Language of the speaker
normalize	boolean		—	Normalize the audio volume.
normalize_loudness_range_target_ebu	number	—	1–50	EBU Loudness Range Target in LUFS (default 7.0). Ignored if normalize_type is not ebu.
normalize_target_level	integer	—	-99–0	Normalization target level in dB/LUFS (default -23). Ignored when normalize_type=ebu.
normalize_target_level_ebu	number	—	-70–-5	Integrated Loudness Target in LUFS. Ignored if normalize_type is not ebu.
normalize_true_peak_ebu	number	—	-9–0	EBU Maximum True Peak in dBTP (default -2.0). Ignored if normalize_type is not ebu.
normalize_type	string	—	ebu, rms, peak	Normalization type, brings the signal to the specified RMS or peak level, or applies EBU R128 for broadcasting.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
start	string	—	^\d\d:\d\d:\d\d$	Sets the start point of the part of the video you want to keep. The format is HH:MM:SS. HH = hour, MM = minutes, SS = seconds. Example 00:02:23

OPUS 17 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
audio_bitrate	integer	—	6, 8, 12, 16, 24, 32, 48, 56, 64, 96, 112, 128, 160, 192, 224, 256, 320	Audio bitrate in kbps.
channels	string	—	stereo, mono	Audio channels.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
end	string	—	^\d\d:\d\d:\d\d$	Sets the end point of the part of the video you want to keep. The format is HH:MM:SS. HH = hour, MM = minutes, SS = seconds. Example 00:05:35
frequency	integer	—	8000, 12000, 16000, 24000, 48000	Audio frequency in Hz.
language_tts	string	—	ar-SA, bg-BG, ca-ES, cs-CZ, da-DK, de-CH, de-DE, el-GR, en-AU, en-CA, en-GB, en-IE, en-IN, en-US, es-ES, es-MX, fi-FI, fr-CA, fr-CH, fr-FR, hi-IN, hr-HR, hu-HU, id-ID, it-IT, ja-JP, nb-NO, nl-BE, nl-NL, pl-PL, pt-BR, pt-PT, ro-RO, ru-RU, sv-SE, ta-IN, tr-TR, vi-VN, zh-CN, zh-HK	Language of the speaker
normalize	boolean		—	Normalize the audio volume.
normalize_loudness_range_target_ebu	number	—	1–50	EBU Loudness Range Target in LUFS (default 7.0). Ignored if normalize_type is not ebu.
normalize_target_level	integer	—	-99–0	Normalization target level in dB/LUFS (default -23). Ignored when normalize_type=ebu.
normalize_target_level_ebu	number	—	-70–-5	Integrated Loudness Target in LUFS. Ignored if normalize_type is not ebu.
normalize_true_peak_ebu	number	—	-9–0	EBU Maximum True Peak in dBTP (default -2.0). Ignored if normalize_type is not ebu.
normalize_type	string	—	ebu, rms, peak	Normalization type, brings the signal to the specified RMS or peak level, or applies EBU R128 for broadcasting.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
start	string	—	^\d\d:\d\d:\d\d$	Sets the start point of the part of the video you want to keep. The format is HH:MM:SS. HH = hour, MM = minutes, SS = seconds. Example 00:02:23

WAV 18 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
audio_bitdepth	integer	—	8, 16, 24, 32	Change bit depth resolution
channels	string	—	stereo, mono	Audio channels.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
end	string	—	^\d\d:\d\d:\d\d$	Sets the end point of the part of the video you want to keep. The format is HH:MM:SS. HH = hour, MM = minutes, SS = seconds. Example 00:05:35
frequency	integer	—	1000, 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000	Audio frequency in Hz.
language_tts	string	—	ar-SA, bg-BG, ca-ES, cs-CZ, da-DK, de-CH, de-DE, el-GR, en-AU, en-CA, en-GB, en-IE, en-IN, en-US, es-ES, es-MX, fi-FI, fr-CA, fr-CH, fr-FR, hi-IN, hr-HR, hu-HU, id-ID, it-IT, ja-JP, nb-NO, nl-BE, nl-NL, pl-PL, pt-BR, pt-PT, ro-RO, ru-RU, sv-SE, ta-IN, tr-TR, vi-VN, zh-CN, zh-HK	Language of the speaker
normalize	boolean		—	Normalize the audio volume.
normalize_loudness_range_target_ebu	number	—	1–50	EBU Loudness Range Target in LUFS (default 7.0). Ignored if normalize_type is not ebu.
normalize_target_level	integer	—	-99–0	Normalization target level in dB/LUFS (default -23). Ignored when normalize_type=ebu.
normalize_target_level_ebu	number	—	-70–-5	Integrated Loudness Target in LUFS. Ignored if normalize_type is not ebu.
normalize_true_peak_ebu	number	—	-9–0	EBU Maximum True Peak in dBTP (default -2.0). Ignored if normalize_type is not ebu.
normalize_type	string	—	ebu, rms, peak	Normalization type, brings the signal to the specified RMS or peak level, or applies EBU R128 for broadcasting.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
pcm_format	string	—	pcm_alaw, pcm_f32be, pcm_f32le, pcm_f64be, pcm_f64le, pcm_mulaw, pcm_s16be, pcm_s16le, pcm_s24be, pcm_s24le, pcm_s32be, pcm_s32le, pcm_s8, pcm_u16be, pcm_u16le, pcm_u24be, pcm_u24le, pcm_u32be, pcm_u32le, pcm_u8	PCM formats.
preset	string	—	^[\w\W]{1,255}$	Predefined options
start	string	—	^\d\d:\d\d:\d\d$	Sets the start point of the part of the video you want to keep. The format is HH:MM:SS. HH = hour, MM = minutes, SS = seconds. Example 00:02:23

WMA 18 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
audio_bitrate	integer	—	8, 12, 16, 24, 32, 48, 56, 64, 96, 112, 128, 160, 192, 224, 256, 320	Audio bitrate in kbps.
audio_codec	string	—	wma1, wma2, copy	Sets the audio codec
channels	string	—	stereo, mono	Audio channels.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
end	string	—	^\d\d:\d\d:\d\d$	Sets the end point of the part of the video you want to keep. The format is HH:MM:SS. HH = hour, MM = minutes, SS = seconds. Example 00:05:35
frequency	integer	—	1000, 8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000	Audio frequency in Hz.
language_tts	string	—	ar-SA, bg-BG, ca-ES, cs-CZ, da-DK, de-CH, de-DE, el-GR, en-AU, en-CA, en-GB, en-IE, en-IN, en-US, es-ES, es-MX, fi-FI, fr-CA, fr-CH, fr-FR, hi-IN, hr-HR, hu-HU, id-ID, it-IT, ja-JP, nb-NO, nl-BE, nl-NL, pl-PL, pt-BR, pt-PT, ro-RO, ru-RU, sv-SE, ta-IN, tr-TR, vi-VN, zh-CN, zh-HK	Language of the speaker
normalize	boolean		—	Normalize the audio volume.
normalize_loudness_range_target_ebu	number	—	1–50	EBU Loudness Range Target in LUFS (default 7.0). Ignored if normalize_type is not ebu.
normalize_target_level	integer	—	-99–0	Normalization target level in dB/LUFS (default -23). Ignored when normalize_type=ebu.
normalize_target_level_ebu	number	—	-70–-5	Integrated Loudness Target in LUFS. Ignored if normalize_type is not ebu.
normalize_true_peak_ebu	number	—	-9–0	EBU Maximum True Peak in dBTP (default -2.0). Ignored if normalize_type is not ebu.
normalize_type	string	—	ebu, rms, peak	Normalization type, brings the signal to the specified RMS or peak level, or applies EBU R128 for broadcasting.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
start	string	—	^\d\d:\d\d:\d\d$	Sets the start point of the part of the video you want to keep. The format is HH:MM:SS. HH = hour, MM = minutes, SS = seconds. Example 00:02:23

DWG 6 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
version	string	—	AC1009, AC1012, AC1014, AC1015, AC1018, AC1021, AC1024, AC1027, AC1032	The internal AutoCAD version code of the output file. E.g. AC1018 for compatibility with AutoCAD 2004, 2005, 2006

DXF 6 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
version	string	—	AC1009, AC1012, AC1014, AC1015, AC1018, AC1021, AC1024, AC1027, AC1032	The internal AutoCAD version code of the output file. E.g. AC1018 for compatibility with AutoCAD 2004, 2005, 2006

DOC 12 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
language	string	—	^[a-zA-Z_,-]{3,128}$	Language for the source (using ISO 639-2/T standard). In case of multi language documents, a comma separated list of values without quotes or spaces can be used. Please note that both plain and script languages cannot be included at the same time. Supported values are: afr, amh, ara, asm, aze, aze_cyrl, bel, ben, bod, bos, bre, bul, cat, ceb, ces, chi_sim, chi_sim_vert, chi_tra, chi_tra_vert, chr, cos, cym, dan, deu, div, dzo, ell, eng, enm, epo, est, eus, fao, fas, fil, fin, fra, frk, frm, fry, gla, gle, glg, grc, guj, hat, heb, hin, hrv, hun, hye, iku, ind, isl, ita, ita_old, jav, jpn, jpn_vert, kan, kat, kat_old, kaz, khm, kir, kmr, kor, kor_vert, lao, lat, lav, lit, ltz, mal, mar, mkd, mlt, mon, mri, msa, mya, nep, nld, nor, oci, ori, pan, pol, por, pus, que, ron, rus, san, sin, slk, slv, snd, spa, spa_old, sqi, srp, srp_latn, sun, swa, swe, syr, tam, tat, tel, tgk, tha, tir, ton, tur, uig, ukr, urd, uzb, uzb_cyrl, vie, yid, yor, script-Arabic, script-Armenian, script-Bengali, script-Canadian_Aboriginal, script-Cherokee, script-Cyrillic, script-Devanagari, script-Ethiopic, script-Fraktur, script-Georgian, script-Greek, script-Gujarati, script-Gurmukhi, script-Hangul, script-Hangul_vert, script-HanS, script-HanS_vert, script-HanT, script-HanT_vert, script-Hebrew, script-Japanese, script-Japanese_vert, script-Kannada, script-Khmer, script-Lao, script-Latin, script-Malayalam, script-Myanmar, script-Oriya, script-Sinhala, script-Syriac, script-Tamil, script-Telugu, script-Thaana, script-Thai, script-Tibetan, script-Vietnamese
language_stt	string	—	ar-AR, ca-ES, zh-CN, cs-CZ, de-DE, el-GR, en-IN, en-US, es-ES, fa-IR, fr-FR, hi-IN, it-IT, ja-JP, kk-KZ, nl-NL, pl-PL, pt-FB, sv-SE, ru-RU, tl-PH, tr-TR, uk-UA, vi-VN	Language of the audio source
ocr	boolean	—	—	Optical character recognition
ocr_filter	string	—	gray	Apply a filter to the input file. It may improve text detection.
ocr_filter_options	string	—	—	Object containing specific filter options.
ocr_mode	string	layout	text, layout	Optical character recognition optimization for text correctness or layout as close as possible to the original one
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
rasterize_input	boolean	—	—	Pre process the input files (PDF only) and convert them to a raster image before OCR processing. It can help to achieve better results with PDF files containing a mix of texts and images containing text.

DOCX 12 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
language	string	—	^[a-zA-Z_,-]{3,128}$	Language for the source (using ISO 639-2/T standard). In case of multi language documents, a comma separated list of values without quotes or spaces can be used. Please note that both plain and script languages cannot be included at the same time. Supported values are: afr, amh, ara, asm, aze, aze_cyrl, bel, ben, bod, bos, bre, bul, cat, ceb, ces, chi_sim, chi_sim_vert, chi_tra, chi_tra_vert, chr, cos, cym, dan, deu, div, dzo, ell, eng, enm, epo, est, eus, fao, fas, fil, fin, fra, frk, frm, fry, gla, gle, glg, grc, guj, hat, heb, hin, hrv, hun, hye, iku, ind, isl, ita, ita_old, jav, jpn, jpn_vert, kan, kat, kat_old, kaz, khm, kir, kmr, kor, kor_vert, lao, lat, lav, lit, ltz, mal, mar, mkd, mlt, mon, mri, msa, mya, nep, nld, nor, oci, ori, pan, pol, por, pus, que, ron, rus, san, sin, slk, slv, snd, spa, spa_old, sqi, srp, srp_latn, sun, swa, swe, syr, tam, tat, tel, tgk, tha, tir, ton, tur, uig, ukr, urd, uzb, uzb_cyrl, vie, yid, yor, script-Arabic, script-Armenian, script-Bengali, script-Canadian_Aboriginal, script-Cherokee, script-Cyrillic, script-Devanagari, script-Ethiopic, script-Fraktur, script-Georgian, script-Greek, script-Gujarati, script-Gurmukhi, script-Hangul, script-Hangul_vert, script-HanS, script-HanS_vert, script-HanT, script-HanT_vert, script-Hebrew, script-Japanese, script-Japanese_vert, script-Kannada, script-Khmer, script-Lao, script-Latin, script-Malayalam, script-Myanmar, script-Oriya, script-Sinhala, script-Syriac, script-Tamil, script-Telugu, script-Thaana, script-Thai, script-Tibetan, script-Vietnamese
language_stt	string	—	ar-AR, ca-ES, zh-CN, cs-CZ, de-DE, el-GR, en-IN, en-US, es-ES, fa-IR, fr-FR, hi-IN, it-IT, ja-JP, kk-KZ, nl-NL, pl-PL, pt-FB, sv-SE, ru-RU, tl-PH, tr-TR, uk-UA, vi-VN	Language of the audio source
ocr	boolean	—	—	Optical character recognition
ocr_filter	string	—	gray	Apply a filter to the input file. It may improve text detection.
ocr_filter_options	string	—	—	Object containing specific filter options.
ocr_mode	string	layout	text, layout	Optical character recognition optimization for text correctness or layout as close as possible to the original one
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
rasterize_input	boolean	—	—	Pre process the input files (PDF only) and convert them to a raster image before OCR processing. It can help to achieve better results with PDF files containing a mix of texts and images containing text.

HTML 6 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
language_stt	string	—	ar-AR, ca-ES, zh-CN, cs-CZ, de-DE, el-GR, en-IN, en-US, es-ES, fa-IR, fr-FR, hi-IN, it-IT, ja-JP, kk-KZ, nl-NL, pl-PL, pt-FB, sv-SE, ru-RU, tl-PH, tr-TR, uk-UA, vi-VN	Language of the audio source
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

ODT 10 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
language	string	—	^[a-zA-Z_,-]{3,128}$	Language for the source (using ISO 639-2/T standard). In case of multi language documents, a comma separated list of values without quotes or spaces can be used. Please note that both plain and script languages cannot be included at the same time. Supported values are: afr, amh, ara, asm, aze, aze_cyrl, bel, ben, bod, bos, bre, bul, cat, ceb, ces, chi_sim, chi_sim_vert, chi_tra, chi_tra_vert, chr, cos, cym, dan, deu, div, dzo, ell, eng, enm, epo, est, eus, fao, fas, fil, fin, fra, frk, frm, fry, gla, gle, glg, grc, guj, hat, heb, hin, hrv, hun, hye, iku, ind, isl, ita, ita_old, jav, jpn, jpn_vert, kan, kat, kat_old, kaz, khm, kir, kmr, kor, kor_vert, lao, lat, lav, lit, ltz, mal, mar, mkd, mlt, mon, mri, msa, mya, nep, nld, nor, oci, ori, pan, pol, por, pus, que, ron, rus, san, sin, slk, slv, snd, spa, spa_old, sqi, srp, srp_latn, sun, swa, swe, syr, tam, tat, tel, tgk, tha, tir, ton, tur, uig, ukr, urd, uzb, uzb_cyrl, vie, yid, yor, script-Arabic, script-Armenian, script-Bengali, script-Canadian_Aboriginal, script-Cherokee, script-Cyrillic, script-Devanagari, script-Ethiopic, script-Fraktur, script-Georgian, script-Greek, script-Gujarati, script-Gurmukhi, script-Hangul, script-Hangul_vert, script-HanS, script-HanS_vert, script-HanT, script-HanT_vert, script-Hebrew, script-Japanese, script-Japanese_vert, script-Kannada, script-Khmer, script-Lao, script-Latin, script-Malayalam, script-Myanmar, script-Oriya, script-Sinhala, script-Syriac, script-Tamil, script-Telugu, script-Thaana, script-Thai, script-Tibetan, script-Vietnamese
language_stt	string	—	ar-AR, ca-ES, zh-CN, cs-CZ, de-DE, el-GR, en-IN, en-US, es-ES, fa-IR, fr-FR, hi-IN, it-IT, ja-JP, kk-KZ, nl-NL, pl-PL, pt-FB, sv-SE, ru-RU, tl-PH, tr-TR, uk-UA, vi-VN	Language of the audio source
ocr	boolean	—	—	Optical character recognition
ocr_filter	string	—	gray	Apply a filter to the input file. It may improve text detection.
ocr_filter_options	string	—	—	Object containing specific filter options.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

PDF 49 options

Option	Type	Default	Allowed / range	Description
add_borders	boolean	—	—	Draw a border frame around each logical page when using pages_per_sheet
alignment	string	—	stretch, center, top, bottom	How to place the watermark or the stamp on each page. "stretch" scales it to cover the full page; "center", "top" and "bottom" keep the watermark at its original size and position it accordingly.
allow_copying	boolean	—	—	Allows copying of the document
allow_modification	boolean	—	—	Allows modification of the document
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
allow_printing	boolean	—	—	Allows printing of the document
border_bottom	number	—	—	The page's bottom border in the unit specified by border_unit
border_left	number	—	—	The page's left border in the unit specified by border_unit
border_right	number	—	—	The page's right border in the unit specified by border_unit
border_top	number	—	—	The page's top border in the unit specified by border_unit
border_unit	string	—	mm, cm, in, pt	The unit of measurement to apply to the border options
color	string	—	rgb, cmyk, gray	The color schema
compression	string	—	basic, strong	Selects the compression level of the converted file
custom_page_size_height	string	—	—	The height of the pages. The unit has to be specified in the custom_page_size_unit field. For best precision if using inchs, please use 4 decimal digits.
custom_page_size_unit	string	—	mm, in	The unit of measurement of the pages.
custom_page_size_width	string	—	—	The width of the pages. The unit has to be specified in the custom_page_size_unit field. For best precision if using inchs, please use 4 decimal digits.
deskew	boolean	—	—	Deskew a PDF created with a scanner not correctly aligned with the original document
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
dpi	integer	—	10–1200	Horizontal and vertical density of images inside the document (referred to as DPI)
file_size	integer	—	1–1048576	Limit the target size of the file you want to convert to PDF to this size in Kbytes (KiB). We try to do our best to achieve this limit as close as possible.
grayscale	boolean	—	—	Grayscale all images inside the PDF
images_quality	integer	—	10–100	The quality of the embedded images (range from 10 to 100). 100 is the highest quality.
language	string	—	^[a-zA-Z_,-]{3,128}$	Language for the source (using ISO 639-2/T standard). In case of multi language documents, a comma separated list of values without quotes or spaces can be used. Please note that both plain and script languages cannot be included at the same time. Supported values are: afr, amh, ara, asm, aze, aze_cyrl, bel, ben, bod, bos, bre, bul, cat, ceb, ces, chi_sim, chi_sim_vert, chi_tra, chi_tra_vert, chr, cos, cym, dan, deu, div, dzo, ell, eng, enm, epo, est, eus, fao, fas, fil, fin, fra, frk, frm, fry, gla, gle, glg, grc, guj, hat, heb, hin, hrv, hun, hye, iku, ind, isl, ita, ita_old, jav, jpn, jpn_vert, kan, kat, kat_old, kaz, khm, kir, kmr, kor, kor_vert, lao, lat, lav, lit, ltz, mal, mar, mkd, mlt, mon, mri, msa, mya, nep, nld, nor, oci, ori, pan, pol, por, pus, que, ron, rus, san, sin, slk, slv, snd, spa, spa_old, sqi, srp, srp_latn, sun, swa, swe, syr, tam, tat, tel, tgk, tha, tir, ton, tur, uig, ukr, urd, uzb, uzb_cyrl, vie, yid, yor, script-Arabic, script-Armenian, script-Bengali, script-Canadian_Aboriginal, script-Cherokee, script-Cyrillic, script-Devanagari, script-Ethiopic, script-Fraktur, script-Georgian, script-Greek, script-Gujarati, script-Gurmukhi, script-Hangul, script-Hangul_vert, script-HanS, script-HanS_vert, script-HanT, script-HanT_vert, script-Hebrew, script-Japanese, script-Japanese_vert, script-Kannada, script-Khmer, script-Lao, script-Latin, script-Malayalam, script-Myanmar, script-Oriya, script-Sinhala, script-Syriac, script-Tamil, script-Telugu, script-Thaana, script-Thai, script-Tibetan, script-Vietnamese
language_stt	string	—	ar-AR, ca-ES, zh-CN, cs-CZ, de-DE, el-GR, en-IN, en-US, es-ES, fa-IR, fr-FR, hi-IN, it-IT, ja-JP, kk-KZ, nl-NL, pl-PL, pt-FB, sv-SE, ru-RU, tl-PH, tr-TR, uk-UA, vi-VN	Language of the audio source
linearize	boolean		—	Optimizes the converted file for web visualization
merge	boolean	—	—	Merges the input files in one output file using the same order as the files appear in the input section of the message.
new_owner_password	string	—	^[\w\W]{0,64}$	Adds or changes the owner's password (up to 64 characters)
new_user_password	string	—	^[\w\W]{0,64}$	Adds or changes the user's password (up to 64 characters)
ocr	boolean	—	—	Optical character recognition
ocr_filter	string	—	gray	Apply a filter to the input file. It may improve text detection.
ocr_filter_options	string	—	—	Object containing specific filter options.
ocr_page_structure	string	—	auto, osd_only, raw_line, single_char, single_column, single_line, single_word, sparse_text, sparse_text_osd, uniform_block_vertical, uniform_text, unstructured	Page structure description to the OCR engine. It may help to have a better result. If your first attempt with automatic page structure detection fails or if you know in advance the structure of your pages, you can try with a more specific one.
one_file_per_page	boolean	—	—	If set, the original document is split in more PDF files, one per page
orientation	string	—	portrait, landscape	The page's orientation
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
page_size	string	—	a0, a1, a2, a3, a4, a4small, a5, a6, a7, a8, a9, a10, isob0, isob1, isob2, isob3, isob4, isob5, isob6, c0, c1, c2, c3, c4, c5, c6, 11x17, ledger, legal, letter, lettersmall, archA, archB, archC, archD, archE, jisb0, jisb1, jisb2, jisb3, jisb4, jisb5, jisb6, b0, b1, b2, b3, b4, b5, flsa, flse, halfletter, hagaki	The size of the pages
pages_per_sheet	integer	—	2, 4, 6, 8, 9, 16	Number of input pages to fit on a single output sheet. The layout is automatically determined based on the source page orientation unless differently specified by the option orientation.
preset	string	—	^[\w\W]{1,255}$	Predefined options
quality	string	—	screen, ebook, default, printer, prepress, minimum, insane	Optimizes the output for a specific target which will produce different output file sizes. It may override other quality options.
rasterize_dpi	integer	—	10–1200	The resulting document will contain images of the pages that have non-selectable text only. They will have the specified DPI value.
rearrange	string	—	^(((\d+|first)-?(\d*|last))|(first)|(last)|(even)|(odd))(, ?(((\d+|first)-?(\d*|last))|(first)|(last)|(even)|(odd)))*$	The page numbers that should be present in the converted file, in the desired order. This is also used to delete pages or extract a set of pages.
split	string	—	^((\d+-?\d*)(, ?(\d+-?\d*))*|all)$	The pages where to split the original file. E.g. in a 30 pages document, an entry of 10,20 will results in three output files with pages 1-10, 11-20, 21-30. It also accepts "all" to split all pages into separate files.
split_page_x	integer	—	2–50	Split all the PDF pages in the specified number of parts along the horizontal axis. E.g. from one A4 landscape page to two A5 portrait pages.
split_page_y	integer	—	2–50	Split all the PDF pages in the specified number of parts along the vertical axis. E.g. from one A4 portrait page to two A5 landscape pages.
stamp	boolean	—	—	Insert the first page of the second input as a stamp into each page of the first input.
stretch_resizing	boolean	—	—	If set, the source page is stretched to fill the target dimensions exactly, ignoring its aspect ratio.
version	string	—	1.4, 1.5, 1.6, 1.7, 2.0	Selects the PDF version of the converted file
watermark	boolean	—	—	Insert the first page of the second input as a watermark into each page of the first input.

PPT 11 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
language	string	—	^[a-zA-Z_,-]{3,128}$	Language for the source (using ISO 639-2/T standard). In case of multi language documents, a comma separated list of values without quotes or spaces can be used. Please note that both plain and script languages cannot be included at the same time. Supported values are: afr, amh, ara, asm, aze, aze_cyrl, bel, ben, bod, bos, bre, bul, cat, ceb, ces, chi_sim, chi_sim_vert, chi_tra, chi_tra_vert, chr, cos, cym, dan, deu, div, dzo, ell, eng, enm, epo, est, eus, fao, fas, fil, fin, fra, frk, frm, fry, gla, gle, glg, grc, guj, hat, heb, hin, hrv, hun, hye, iku, ind, isl, ita, ita_old, jav, jpn, jpn_vert, kan, kat, kat_old, kaz, khm, kir, kmr, kor, kor_vert, lao, lat, lav, lit, ltz, mal, mar, mkd, mlt, mon, mri, msa, mya, nep, nld, nor, oci, ori, pan, pol, por, pus, que, ron, rus, san, sin, slk, slv, snd, spa, spa_old, sqi, srp, srp_latn, sun, swa, swe, syr, tam, tat, tel, tgk, tha, tir, ton, tur, uig, ukr, urd, uzb, uzb_cyrl, vie, yid, yor, script-Arabic, script-Armenian, script-Bengali, script-Canadian_Aboriginal, script-Cherokee, script-Cyrillic, script-Devanagari, script-Ethiopic, script-Fraktur, script-Georgian, script-Greek, script-Gujarati, script-Gurmukhi, script-Hangul, script-Hangul_vert, script-HanS, script-HanS_vert, script-HanT, script-HanT_vert, script-Hebrew, script-Japanese, script-Japanese_vert, script-Kannada, script-Khmer, script-Lao, script-Latin, script-Malayalam, script-Myanmar, script-Oriya, script-Sinhala, script-Syriac, script-Tamil, script-Telugu, script-Thaana, script-Thai, script-Tibetan, script-Vietnamese
language_stt	string	—	ar-AR, ca-ES, zh-CN, cs-CZ, de-DE, el-GR, en-IN, en-US, es-ES, fa-IR, fr-FR, hi-IN, it-IT, ja-JP, kk-KZ, nl-NL, pl-PL, pt-FB, sv-SE, ru-RU, tl-PH, tr-TR, uk-UA, vi-VN	Language of the audio source
ocr	boolean	—	—	Optical character recognition
ocr_filter	string	—	gray	Apply a filter to the input file. It may improve text detection.
ocr_filter_options	string	—	—	Object containing specific filter options.
ocr_mode	string	layout	text, layout	Optical character recognition optimization for text correctness or layout as close as possible to the original one
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

PPTX 11 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
language	string	—	^[a-zA-Z_,-]{3,128}$	Language for the source (using ISO 639-2/T standard). In case of multi language documents, a comma separated list of values without quotes or spaces can be used. Please note that both plain and script languages cannot be included at the same time. Supported values are: afr, amh, ara, asm, aze, aze_cyrl, bel, ben, bod, bos, bre, bul, cat, ceb, ces, chi_sim, chi_sim_vert, chi_tra, chi_tra_vert, chr, cos, cym, dan, deu, div, dzo, ell, eng, enm, epo, est, eus, fao, fas, fil, fin, fra, frk, frm, fry, gla, gle, glg, grc, guj, hat, heb, hin, hrv, hun, hye, iku, ind, isl, ita, ita_old, jav, jpn, jpn_vert, kan, kat, kat_old, kaz, khm, kir, kmr, kor, kor_vert, lao, lat, lav, lit, ltz, mal, mar, mkd, mlt, mon, mri, msa, mya, nep, nld, nor, oci, ori, pan, pol, por, pus, que, ron, rus, san, sin, slk, slv, snd, spa, spa_old, sqi, srp, srp_latn, sun, swa, swe, syr, tam, tat, tel, tgk, tha, tir, ton, tur, uig, ukr, urd, uzb, uzb_cyrl, vie, yid, yor, script-Arabic, script-Armenian, script-Bengali, script-Canadian_Aboriginal, script-Cherokee, script-Cyrillic, script-Devanagari, script-Ethiopic, script-Fraktur, script-Georgian, script-Greek, script-Gujarati, script-Gurmukhi, script-Hangul, script-Hangul_vert, script-HanS, script-HanS_vert, script-HanT, script-HanT_vert, script-Hebrew, script-Japanese, script-Japanese_vert, script-Kannada, script-Khmer, script-Lao, script-Latin, script-Malayalam, script-Myanmar, script-Oriya, script-Sinhala, script-Syriac, script-Tamil, script-Telugu, script-Thaana, script-Thai, script-Tibetan, script-Vietnamese
language_stt	string	—	ar-AR, ca-ES, zh-CN, cs-CZ, de-DE, el-GR, en-IN, en-US, es-ES, fa-IR, fr-FR, hi-IN, it-IT, ja-JP, kk-KZ, nl-NL, pl-PL, pt-FB, sv-SE, ru-RU, tl-PH, tr-TR, uk-UA, vi-VN	Language of the audio source
ocr	boolean	—	—	Optical character recognition
ocr_filter	string	—	gray	Apply a filter to the input file. It may improve text detection.
ocr_filter_options	string	—	—	Object containing specific filter options.
ocr_mode	string	layout	text, layout	Optical character recognition optimization for text correctness or layout as close as possible to the original one
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

RTF 12 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
language	string	—	^[a-zA-Z_,-]{3,128}$	Language for the source (using ISO 639-2/T standard). In case of multi language documents, a comma separated list of values without quotes or spaces can be used. Please note that both plain and script languages cannot be included at the same time. Supported values are: afr, amh, ara, asm, aze, aze_cyrl, bel, ben, bod, bos, bre, bul, cat, ceb, ces, chi_sim, chi_sim_vert, chi_tra, chi_tra_vert, chr, cos, cym, dan, deu, div, dzo, ell, eng, enm, epo, est, eus, fao, fas, fil, fin, fra, frk, frm, fry, gla, gle, glg, grc, guj, hat, heb, hin, hrv, hun, hye, iku, ind, isl, ita, ita_old, jav, jpn, jpn_vert, kan, kat, kat_old, kaz, khm, kir, kmr, kor, kor_vert, lao, lat, lav, lit, ltz, mal, mar, mkd, mlt, mon, mri, msa, mya, nep, nld, nor, oci, ori, pan, pol, por, pus, que, ron, rus, san, sin, slk, slv, snd, spa, spa_old, sqi, srp, srp_latn, sun, swa, swe, syr, tam, tat, tel, tgk, tha, tir, ton, tur, uig, ukr, urd, uzb, uzb_cyrl, vie, yid, yor, script-Arabic, script-Armenian, script-Bengali, script-Canadian_Aboriginal, script-Cherokee, script-Cyrillic, script-Devanagari, script-Ethiopic, script-Fraktur, script-Georgian, script-Greek, script-Gujarati, script-Gurmukhi, script-Hangul, script-Hangul_vert, script-HanS, script-HanS_vert, script-HanT, script-HanT_vert, script-Hebrew, script-Japanese, script-Japanese_vert, script-Kannada, script-Khmer, script-Lao, script-Latin, script-Malayalam, script-Myanmar, script-Oriya, script-Sinhala, script-Syriac, script-Tamil, script-Telugu, script-Thaana, script-Thai, script-Tibetan, script-Vietnamese
language_stt	string	—	ar-AR, ca-ES, zh-CN, cs-CZ, de-DE, el-GR, en-IN, en-US, es-ES, fa-IR, fr-FR, hi-IN, it-IT, ja-JP, kk-KZ, nl-NL, pl-PL, pt-FB, sv-SE, ru-RU, tl-PH, tr-TR, uk-UA, vi-VN	Language of the audio source
ocr	boolean	—	—	Optical character recognition
ocr_filter	string	—	gray	Apply a filter to the input file. It may improve text detection.
ocr_filter_options	string	—	—	Object containing specific filter options.
ocr_mode	string	layout	text, layout	Optical character recognition optimization for text correctness or layout as close as possible to the original one
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
rasterize_input	boolean	—	—	Pre process the input files (PDF only) and convert them to a raster image before OCR processing. It can help to achieve better results with PDF files containing a mix of texts and images containing text.

TXT 14 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
language	string	—	^[a-zA-Z_,-]{3,128}$	Language for the source (using ISO 639-2/T standard). In case of multi language documents, a comma separated list of values without quotes or spaces can be used. Please note that both plain and script languages cannot be included at the same time. Supported values are: afr, amh, ara, asm, aze, aze_cyrl, bel, ben, bod, bos, bre, bul, cat, ceb, ces, chi_sim, chi_sim_vert, chi_tra, chi_tra_vert, chr, cos, cym, dan, deu, div, dzo, ell, eng, enm, epo, est, eus, fao, fas, fil, fin, fra, frk, frm, fry, gla, gle, glg, grc, guj, hat, heb, hin, hrv, hun, hye, iku, ind, isl, ita, ita_old, jav, jpn, jpn_vert, kan, kat, kat_old, kaz, khm, kir, kmr, kor, kor_vert, lao, lat, lav, lit, ltz, mal, mar, mkd, mlt, mon, mri, msa, mya, nep, nld, nor, oci, ori, pan, pol, por, pus, que, ron, rus, san, sin, slk, slv, snd, spa, spa_old, sqi, srp, srp_latn, sun, swa, swe, syr, tam, tat, tel, tgk, tha, tir, ton, tur, uig, ukr, urd, uzb, uzb_cyrl, vie, yid, yor, script-Arabic, script-Armenian, script-Bengali, script-Canadian_Aboriginal, script-Cherokee, script-Cyrillic, script-Devanagari, script-Ethiopic, script-Fraktur, script-Georgian, script-Greek, script-Gujarati, script-Gurmukhi, script-Hangul, script-Hangul_vert, script-HanS, script-HanS_vert, script-HanT, script-HanT_vert, script-Hebrew, script-Japanese, script-Japanese_vert, script-Kannada, script-Khmer, script-Lao, script-Latin, script-Malayalam, script-Myanmar, script-Oriya, script-Sinhala, script-Syriac, script-Tamil, script-Telugu, script-Thaana, script-Thai, script-Tibetan, script-Vietnamese
language_stt	string	—	ar-AR, ca-ES, zh-CN, cs-CZ, de-DE, el-GR, en-IN, en-US, es-ES, fa-IR, fr-FR, hi-IN, it-IT, ja-JP, kk-KZ, nl-NL, pl-PL, pt-FB, sv-SE, ru-RU, tl-PH, tr-TR, uk-UA, vi-VN	Language of the audio source
ocr	boolean	—	—	Optical character recognition
ocr_engine	string	—	red_kiwi	Selects the optimized engine depending on how the source file was created
ocr_engine_options	string	—	—	Object containing specific engine options.
ocr_filter	string	—	gray	Apply a filter to the input file. It may improve text detection.
ocr_filter_options	string	—	—	Object containing specific filter options.
ocr_mode	string	layout	text, layout	Optical character recognition optimization for text correctness or layout as close as possible to the original one
ocr_page_structure	string	—	auto, osd_only, raw_line, single_char, single_column, single_line, single_word, sparse_text, sparse_text_osd, uniform_block_vertical, uniform_text, unstructured	Page structure description to the OCR engine. It may help to have a better result. If your first attempt with automatic page structure detection fails or if you know in advance the structure of your pages, you can try with a more specific one.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

XLS 10 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
language	string	—	^[a-zA-Z_,-]{3,128}$	Language for the source (using ISO 639-2/T standard). In case of multi language documents, a comma separated list of values without quotes or spaces can be used. Please note that both plain and script languages cannot be included at the same time. Supported values are: afr, amh, ara, asm, aze, aze_cyrl, bel, ben, bod, bos, bre, bul, cat, ceb, ces, chi_sim, chi_sim_vert, chi_tra, chi_tra_vert, chr, cos, cym, dan, deu, div, dzo, ell, eng, enm, epo, est, eus, fao, fas, fil, fin, fra, frk, frm, fry, gla, gle, glg, grc, guj, hat, heb, hin, hrv, hun, hye, iku, ind, isl, ita, ita_old, jav, jpn, jpn_vert, kan, kat, kat_old, kaz, khm, kir, kmr, kor, kor_vert, lao, lat, lav, lit, ltz, mal, mar, mkd, mlt, mon, mri, msa, mya, nep, nld, nor, oci, ori, pan, pol, por, pus, que, ron, rus, san, sin, slk, slv, snd, spa, spa_old, sqi, srp, srp_latn, sun, swa, swe, syr, tam, tat, tel, tgk, tha, tir, ton, tur, uig, ukr, urd, uzb, uzb_cyrl, vie, yid, yor, script-Arabic, script-Armenian, script-Bengali, script-Canadian_Aboriginal, script-Cherokee, script-Cyrillic, script-Devanagari, script-Ethiopic, script-Fraktur, script-Georgian, script-Greek, script-Gujarati, script-Gurmukhi, script-Hangul, script-Hangul_vert, script-HanS, script-HanS_vert, script-HanT, script-HanT_vert, script-Hebrew, script-Japanese, script-Japanese_vert, script-Kannada, script-Khmer, script-Lao, script-Latin, script-Malayalam, script-Myanmar, script-Oriya, script-Sinhala, script-Syriac, script-Tamil, script-Telugu, script-Thaana, script-Thai, script-Tibetan, script-Vietnamese
language_stt	string	—	ar-AR, ca-ES, zh-CN, cs-CZ, de-DE, el-GR, en-IN, en-US, es-ES, fa-IR, fr-FR, hi-IN, it-IT, ja-JP, kk-KZ, nl-NL, pl-PL, pt-FB, sv-SE, ru-RU, tl-PH, tr-TR, uk-UA, vi-VN	Language of the audio source
ocr	boolean	—	—	Optical character recognition
ocr_filter	string	—	gray	Apply a filter to the input file. It may improve text detection.
ocr_filter_options	string	—	—	Object containing specific filter options.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

XLSX 8 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
language	string	—	^[a-zA-Z_,-]{3,128}$	Language for the source (using ISO 639-2/T standard). In case of multi language documents, a comma separated list of values without quotes or spaces can be used. Please note that both plain and script languages cannot be included at the same time. Supported values are: afr, amh, ara, asm, aze, aze_cyrl, bel, ben, bod, bos, bre, bul, cat, ceb, ces, chi_sim, chi_sim_vert, chi_tra, chi_tra_vert, chr, cos, cym, dan, deu, div, dzo, ell, eng, enm, epo, est, eus, fao, fas, fil, fin, fra, frk, frm, fry, gla, gle, glg, grc, guj, hat, heb, hin, hrv, hun, hye, iku, ind, isl, ita, ita_old, jav, jpn, jpn_vert, kan, kat, kat_old, kaz, khm, kir, kmr, kor, kor_vert, lao, lat, lav, lit, ltz, mal, mar, mkd, mlt, mon, mri, msa, mya, nep, nld, nor, oci, ori, pan, pol, por, pus, que, ron, rus, san, sin, slk, slv, snd, spa, spa_old, sqi, srp, srp_latn, sun, swa, swe, syr, tam, tat, tel, tgk, tgl, tha, tir, ton, tur, uig, ukr, urd, uzb, uzb_cyrl, vie, yid, yor, script-Arabic, script-Armenian, script-Bengali, script-Canadian_Aboriginal, script-Cherokee, script-Cyrillic, script-Devanagari, script-Ethiopic, script-Fraktur, script-Georgian, script-Greek, script-Gujarati, script-Gurmukhi, script-Hangul, script-Hangul_vert, script-HanS, script-HanS_vert, script-HanT, script-HanT_vert, script-Hebrew, script-Japanese, script-Japanese_vert, script-Kannada, script-Khmer, script-Lao, script-Latin, script-Malayalam, script-Myanmar, script-Oriya, script-Sinhala, script-Syriac, script-Tamil, script-Telugu, script-Thaana, script-Thai, script-Tibetan, script-Vietnamese
language_stt	string	—	ar-AR, ca-ES, zh-CN, cs-CZ, de-DE, el-GR, en-IN, en-US, es-ES, fa-IR, fr-FR, hi-IN, it-IT, ja-JP, kk-KZ, nl-NL, pl-PL, pt-FB, sv-SE, ru-RU, tl-PH, tr-TR, uk-UA, vi-VN	Language of the audio source
ocr	boolean	—	—	Optical character recognition
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

AZW3 15 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
ascii	boolean		—	ASCII output
author	string	—	^[\w\W]{0,512}$	Change ebook author (up to 512 characters)
base_font_size	integer	—	6–22	Force a specific base font size in pts. All of the other fonts will be scaled proportionally to this value.
border	integer	—	0–20	Add border in centimeters
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
embed_font	string	—	sans, serif	Embed generic font
enable_heuristics	boolean		—	Enable heuristic processing
encoding	string	—	ascii, cp1250, cp1251, cp1252, cp1253, cp1254, cp1257, iso8859_1, iso8859_2, iso8859_4, iso8859_5, iso8859_7, iso8859_9, iso8859_13, iso8859_15, koi8_r, utf8, utf-16, euc_jp, sjis, iso2022jp, gbk, iscii91, big5, tis620, gb2312, ISO-2022-KR	Change the input encoding
language_stt	string	—	ar-AR, ca-ES, zh-CN, cs-CZ, de-DE, el-GR, en-IN, en-US, es-ES, fa-IR, fr-FR, hi-IN, it-IT, ja-JP, kk-KZ, nl-NL, pl-PL, pt-FB, sv-SE, ru-RU, tl-PH, tr-TR, uk-UA, vi-VN	Language of the audio source
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
reader	string	—	Kindle, Kindle DX, Kindle Fire, Kindle Oasis, Kindle Paperwhite, Kindle Paperwhite 3, Kindle Scribe, Kindle Voyage	Choose a target ebook reader for better compatibilty
title	string	—	^[\w\W]{0,512}$	Change ebook title (up to 512 characters)

EPUB 16 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
ascii	boolean		—	ASCII output
author	string	—	^[\w\W]{0,512}$	Change ebook author (up to 512 characters)
base_font_size	integer	—	6–22	Force a specific base font size in pts. All of the other fonts will be scaled proportionally to this value.
border	integer	—	0–20	Add border in centimeters
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
embed_font	string	—	sans, serif	Embed generic font
enable_heuristics	boolean		—	Enable heuristic processing
encoding	string	—	ascii, cp1250, cp1251, cp1252, cp1253, cp1254, cp1257, iso8859_1, iso8859_2, iso8859_4, iso8859_5, iso8859_7, iso8859_9, iso8859_13, iso8859_15, koi8_r, utf8, utf-16, euc_jp, sjis, iso2022jp, gbk, iscii91, big5, tis620, gb2312, ISO-2022-KR	Change the input encoding
language_stt	string	—	ar-AR, ca-ES, zh-CN, cs-CZ, de-DE, el-GR, en-IN, en-US, es-ES, fa-IR, fr-FR, hi-IN, it-IT, ja-JP, kk-KZ, nl-NL, pl-PL, pt-FB, sv-SE, ru-RU, tl-PH, tr-TR, uk-UA, vi-VN	Language of the audio source
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
reader	string	—	default, Apple iPad, Apple iPad 3, Cybook 3, Cybook Opus, Ectaco jetBook, Galaxy, Generic e-ink, Generic HD e-ink, Generic large e-ink, Hanlin V3, Hanlin V5, iLiad, IrexDR800, IrexDR1000, jetBook, Kobo, Mobipocket, MS Reader, Nook, Nook Color, Nook HD Plus, Pocketbook 900, Pocketbook Pro 912, Pocketbook InkPad 3, Pocketbook InkPad Lux, Pocketbook InkPad HD, Sony, Sony 300, Sony 900, Sony Landscape, Sony T3, Tablet	Choose a target ebook reader for better compatibilty
title	string	—	^[\w\W]{0,512}$	Change ebook title (up to 512 characters)
version	string	—	2, 3	The format's version

FB2 14 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
ascii	boolean		—	ASCII output
author	string	—	^[\w\W]{0,512}$	Change ebook author (up to 512 characters)
base_font_size	integer	—	6–22	Force a specific base font size in pts. All of the other fonts will be scaled proportionally to this value.
border	integer	—	0–20	Add border in centimeters
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
enable_heuristics	boolean		—	Enable heuristic processing
encoding	string	—	ascii, cp1250, cp1251, cp1252, cp1253, cp1254, cp1257, iso8859_1, iso8859_2, iso8859_4, iso8859_5, iso8859_7, iso8859_9, iso8859_13, iso8859_15, koi8_r, utf8, utf-16, euc_jp, sjis, iso2022jp, gbk, iscii91, big5, tis620, gb2312, ISO-2022-KR	Change the input encoding
language_stt	string	—	ar-AR, ca-ES, zh-CN, cs-CZ, de-DE, el-GR, en-IN, en-US, es-ES, fa-IR, fr-FR, hi-IN, it-IT, ja-JP, kk-KZ, nl-NL, pl-PL, pt-FB, sv-SE, ru-RU, tl-PH, tr-TR, uk-UA, vi-VN	Language of the audio source
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
reader	string	—	default, Cybook 3, Cybook Opus, Ectaco jetBook, Hanlin V3, Hanlin V5, Pocketbook 900, Pocketbook Pro 912, Pocketbook InkPad 3, Pocketbook InkPad Lux, Pocketbook InkPad HD	Choose a target ebook reader for better compatibilty
title	string	—	^[\w\W]{0,512}$	Change ebook title (up to 512 characters)

LIT 14 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
ascii	boolean		—	ASCII output
author	string	—	^[\w\W]{0,512}$	Change ebook author (up to 512 characters)
base_font_size	integer	—	6–22	Force a specific base font size in pts. All of the other fonts will be scaled proportionally to this value.
border	integer	—	0–20	Add border in centimeters
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
enable_heuristics	boolean		—	Enable heuristic processing
encoding	string	—	ascii, cp1250, cp1251, cp1252, cp1253, cp1254, cp1257, iso8859_1, iso8859_2, iso8859_4, iso8859_5, iso8859_7, iso8859_9, iso8859_13, iso8859_15, koi8_r, utf8, utf-16, euc_jp, sjis, iso2022jp, gbk, iscii91, big5, tis620, gb2312, ISO-2022-KR	Change the input encoding
language_stt	string	—	ar-AR, ca-ES, zh-CN, cs-CZ, de-DE, el-GR, en-IN, en-US, es-ES, fa-IR, fr-FR, hi-IN, it-IT, ja-JP, kk-KZ, nl-NL, pl-PL, pt-FB, sv-SE, ru-RU, tl-PH, tr-TR, uk-UA, vi-VN	Language of the audio source
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
reader	string	—	MS Reader, Hanlin V3, Hanlin V5	Choose a target ebook reader for better compatibilty
title	string	—	^[\w\W]{0,512}$	Change ebook title (up to 512 characters)

LRF 14 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
ascii	boolean		—	ASCII output
author	string	—	^[\w\W]{0,512}$	Change ebook author (up to 512 characters)
base_font_size	integer	—	6–22	Force a specific base font size in pts. All of the other fonts will be scaled proportionally to this value.
border	integer	—	0–20	Add border in centimeters
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
enable_heuristics	boolean		—	Enable heuristic processing
encoding	string	—	ascii, cp1250, cp1251, cp1252, cp1253, cp1254, cp1257, iso8859_1, iso8859_2, iso8859_4, iso8859_5, iso8859_7, iso8859_9, iso8859_13, iso8859_15, koi8_r, utf8, utf-16, euc_jp, sjis, iso2022jp, gbk, iscii91, big5, tis620, gb2312, ISO-2022-KR	Change the input encoding
language_stt	string	—	ar-AR, ca-ES, zh-CN, cs-CZ, de-DE, el-GR, en-IN, en-US, es-ES, fa-IR, fr-FR, hi-IN, it-IT, ja-JP, kk-KZ, nl-NL, pl-PL, pt-FB, sv-SE, ru-RU, tl-PH, tr-TR, uk-UA, vi-VN	Language of the audio source
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
reader	string	—	default, Sony, Sony 300, Sony 900, Sony Landscape, Sony T3	Choose a target ebook reader for better compatibilty
title	string	—	^[\w\W]{0,512}$	Change ebook title (up to 512 characters)

MOBI 14 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
ascii	boolean		—	ASCII output
author	string	—	^[\w\W]{0,512}$	Change ebook author (up to 512 characters)
base_font_size	integer	—	6–22	Force a specific base font size in pts. All of the other fonts will be scaled proportionally to this value.
border	integer	—	0–20	Add border in centimeters
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
enable_heuristics	boolean		—	Enable heuristic processing
encoding	string	—	ascii, cp1250, cp1251, cp1252, cp1253, cp1254, cp1257, iso8859_1, iso8859_2, iso8859_4, iso8859_5, iso8859_7, iso8859_9, iso8859_13, iso8859_15, koi8_r, utf8, utf-16, euc_jp, sjis, iso2022jp, gbk, iscii91, big5, tis620, gb2312, ISO-2022-KR	Change the input encoding
language_stt	string	—	ar-AR, ca-ES, zh-CN, cs-CZ, de-DE, el-GR, en-IN, en-US, es-ES, fa-IR, fr-FR, hi-IN, it-IT, ja-JP, kk-KZ, nl-NL, pl-PL, pt-FB, sv-SE, ru-RU, tl-PH, tr-TR, uk-UA, vi-VN	Language of the audio source
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
reader	string	—	default, Cybook 3, Cybook Opus, Ectaco jetBook, Hanlin V3, Hanlin V5, iLiad, Kindle, Kindle DX, Kindle Fire, Kindle Oasis, Kindle Paperwhite, Kindle Paperwhite 3, Kindle Voyage, Kobo, Pocketbook 900, Pocketbook Pro 912, Pocketbook InkPad 3, Pocketbook InkPad Lux, Pocketbook InkPad HD	Choose a target ebook reader for better compatibilty
title	string	—	^[\w\W]{0,512}$	Change ebook title (up to 512 characters)

PDB 14 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
ascii	boolean		—	ASCII output
author	string	—	^[\w\W]{0,512}$	Change ebook author (up to 512 characters)
base_font_size	integer	—	6–22	Force a specific base font size in pts. All of the other fonts will be scaled proportionally to this value.
border	integer	—	0–20	Add border in centimeters
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
enable_heuristics	boolean		—	Enable heuristic processing
encoding	string	—	ascii, cp1250, cp1251, cp1252, cp1253, cp1254, cp1257, iso8859_1, iso8859_2, iso8859_4, iso8859_5, iso8859_7, iso8859_9, iso8859_13, iso8859_15, koi8_r, utf8, utf-16, euc_jp, sjis, iso2022jp, gbk, iscii91, big5, tis620, gb2312, ISO-2022-KR	Change the input encoding
language_stt	string	—	ar-AR, ca-ES, zh-CN, cs-CZ, de-DE, el-GR, en-IN, en-US, es-ES, fa-IR, fr-FR, hi-IN, it-IT, ja-JP, kk-KZ, nl-NL, pl-PL, pt-FB, sv-SE, ru-RU, tl-PH, tr-TR, uk-UA, vi-VN	Language of the audio source
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
reader	string	—	default, IrexDR800, IrexDR1000, Nook, Nook Color, Nook HD Plus	Choose a target ebook reader for better compatibilty
title	string	—	^[\w\W]{0,512}$	Change ebook title (up to 512 characters)

PDF 27 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
ascii	boolean		—	ASCII output
author	string	—	^[\w\W]{0,512}$	Change ebook author (up to 512 characters)
base_font_size	integer	—	6–22	Force a specific base font size in pts. All of the other fonts will be scaled proportionally to this value.
border	integer	—	0–20	Add border in centimeters
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
embed_font	string	—	sans, serif	Embed generic font
enable_heuristics	boolean		—	Enable heuristic processing
encoding	string	—	ascii, cp1250, cp1251, cp1252, cp1253, cp1254, cp1257, iso8859_1, iso8859_2, iso8859_4, iso8859_5, iso8859_7, iso8859_9, iso8859_13, iso8859_15, koi8_r, utf8, utf-16, euc_jp, sjis, iso2022jp, gbk, iscii91, big5, tis620, gb2312, ISO-2022-KR	Change the input encoding
language	string	—	^[a-zA-Z_,-]{3,128}$	Language for the source (using ISO 639-2/T standard). In case of multi language documents, a comma separated list of values without quotes or spaces can be used. Please note that both plain and script languages cannot be included at the same time. Supported values are: afr, amh, ara, asm, aze, aze_cyrl, bel, ben, bod, bos, bre, bul, cat, ceb, ces, chi_sim, chi_sim_vert, chi_tra, chi_tra_vert, chr, cos, cym, dan, deu, div, dzo, ell, eng, enm, epo, est, eus, fao, fas, fil, fin, fra, frk, frm, fry, gla, gle, glg, grc, guj, hat, heb, hin, hrv, hun, hye, iku, ind, isl, ita, ita_old, jav, jpn, jpn_vert, kan, kat, kat_old, kaz, khm, kir, kmr, kor, kor_vert, lao, lat, lav, lit, ltz, mal, mar, mkd, mlt, mon, mri, msa, mya, nep, nld, nor, oci, ori, pan, pol, por, pus, que, ron, rus, san, sin, slk, slv, snd, spa, spa_old, sqi, srp, srp_latn, sun, swa, swe, syr, tam, tat, tel, tgk, tha, tir, ton, tur, uig, ukr, urd, uzb, uzb_cyrl, vie, yid, yor, script-Arabic, script-Armenian, script-Bengali, script-Canadian_Aboriginal, script-Cherokee, script-Cyrillic, script-Devanagari, script-Ethiopic, script-Fraktur, script-Georgian, script-Greek, script-Gujarati, script-Gurmukhi, script-Hangul, script-Hangul_vert, script-HanS, script-HanS_vert, script-HanT, script-HanT_vert, script-Hebrew, script-Japanese, script-Japanese_vert, script-Kannada, script-Khmer, script-Lao, script-Latin, script-Malayalam, script-Myanmar, script-Oriya, script-Sinhala, script-Syriac, script-Tamil, script-Telugu, script-Thaana, script-Thai, script-Tibetan, script-Vietnamese
language_stt	string	—	ar-AR, ca-ES, zh-CN, cs-CZ, de-DE, el-GR, en-IN, en-US, es-ES, fa-IR, fr-FR, hi-IN, it-IT, ja-JP, kk-KZ, nl-NL, pl-PL, pt-FB, sv-SE, ru-RU, tl-PH, tr-TR, uk-UA, vi-VN	Language of the audio source
ocr	boolean	—	—	Optical character recognition
ocr_filter	string	—	gray	Apply a filter to the input file. It may improve text detection.
ocr_filter_options	string	—	—	Object containing specific filter options.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
paper_size	string	—	a0, a1, a2, a3, a4, a5, a6, b0, b1, b2, b3, b4, b5, b6, legal, letter	The size of the paper. Default is letter.
pdf_add_toc	boolean	—	—	Adds a Table of Contents at the end of the PDF that lists page numbers.
pdf_default_font_size	number	—	4–1000	The default font size (in pixels)
pdf_no_cover	boolean	—	—	Do not insert the book cover as an image at the start of the document.
pdf_page_margin_bottom	number	—	0–10000	The size of the bottom page margin, in pts. Default is 72pt. Overrides the common bottom page margin setting, unless set to zero.
pdf_page_margin_left	number	—	0–10000	The size of the left page margin, in pts. Default is 72pt. Overrides the common left page margin setting, unless set to zero.
pdf_page_margin_right	number	—	0–10000	The size of the right page margin, in pts. Default is 72pt. Overrides the common right page margin setting, unless set to zero.
pdf_page_margin_top	number	—	0–10000	The size of the top page margin, in pts. Default is 72pt. Overrides the common top page margin setting, unless set to zero.
preset	string	—	^[\w\W]{1,255}$	Predefined options
reader	string	—	default, Apple iPad, Apple iPad 3, Cybook 3, Cybook Opus, Ectaco jetBook, Galaxy, Generic e-ink, Generic HD e-ink, Generic large e-ink, Hanlin V3, Hanlin V5, iLiad, IrexDR800, IrexDR1000, jetBook, Kindle, Kindle DX, Kindle Fire, Kindle Oasis, Kindle Paperwhite, Kindle Paperwhite 3, Kindle Voyage, Kobo, Mobipocket, MS Reader, Nook, Nook Color, Nook HD Plus, Pocketbook 900, Pocketbook Pro 912, Pocketbook InkPad 3, Pocketbook InkPad Lux, Pocketbook InkPad HD, Sony, Sony 300, Sony 900, Sony Landscape, Sony T3, Tablet	Choose a target ebook reader for better compatibilty
title	string	—	^[\w\W]{0,512}$	Change ebook title (up to 512 characters)

PDF-EBOOK 7 options

Option	Type	Default	Allowed / range	Description
ascii	boolean		—	ASCII output
author	string	—	—	Change ebook author
border	integer	—	—	Add border in centimeters
embed_font	string	—	sans, serif	Embed generic font
encoding	string	—	—	Change the input encoding
reader	string	—	Kindle, Kindle DX, Kindle Fire, Kindle Paperwhite, Kindle Voyage, Apple iPad, Apple iPad 3, Galaxy, Sony, Sony 300, Sony 900, Sony Landscape, Sony T3, MS Reader, Mobipocket, Hanlin V3, Hanlin V5, Cybook 3, Cybook Opus, iLiad, IrexDR800, IrexDR1000, jetBook, Kobo, Nook, Nook Color, Nook HD Plus, Bambook, Tablet, Generic e-ink, Generic large e-ink, Pocketbook 900, Pocketbook Pro 912	Target ebook for better compatibility
title	string	—	—	Change ebook title

TCR 14 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
ascii	boolean		—	ASCII output
author	string	—	^[\w\W]{0,512}$	Change ebook author (up to 512 characters)
base_font_size	integer	—	6–22	Force a specific base font size in pts. All of the other fonts will be scaled proportionally to this value.
border	integer	—	0–20	Add border in centimeters
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
enable_heuristics	boolean		—	Enable heuristic processing
encoding	string	—	ascii, cp1250, cp1251, cp1252, cp1253, cp1254, cp1257, iso8859_1, iso8859_2, iso8859_4, iso8859_5, iso8859_7, iso8859_9, iso8859_13, iso8859_15, koi8_r, utf8, utf-16, euc_jp, sjis, iso2022jp, gbk, iscii91, big5, tis620, gb2312, ISO-2022-KR	Change the input encoding
language_stt	string	—	ar-AR, ca-ES, zh-CN, cs-CZ, de-DE, el-GR, en-IN, en-US, es-ES, fa-IR, fr-FR, hi-IN, it-IT, ja-JP, kk-KZ, nl-NL, pl-PL, pt-FB, sv-SE, ru-RU, tl-PH, tr-TR, uk-UA, vi-VN	Language of the audio source
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
reader	string	—	default, Pocketbook 900, Pocketbook Pro 912, Pocketbook InkPad 3, Pocketbook InkPad Lux, Pocketbook InkPad HD	Choose a target ebook reader for better compatibilty
title	string	—	^[\w\W]{0,512}$	Change ebook title (up to 512 characters)

ADLER32 5 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

APACHE-HTPASSWD 6 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
salt	string	—	^[\w\W]{0,5000}$	Shared secret key used as additional input to defend against some attacks.

BLOWFISH 7 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
rounds	integer	—	1–15	Number of rounds used by the encryption engine
salt	string	—	^[\w\W]{0,5000}$	Shared secret key used as additional input to defend against some attacks.

CRC32 5 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

CRC32B 5 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

GOST 6 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
hmac	string	—	^[\w\W]{0,1000}$	Shared secret key used for the HMAC variant.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

HAVAL128 7 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
hmac	string	—	^[\w\W]{0,1000}$	Shared secret key used for the HMAC variant.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
rounds	integer	—	3, 4, 5	Number of rounds used by the encryption engine

MD4 6 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
hmac	string	—	^[\w\W]{0,1000}$	Shared secret key used for the HMAC variant.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

MD5 6 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
hmac	string	—	^[\w\W]{0,1000}$	Shared secret key used for the HMAC variant.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

RIPEMD128 6 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
hmac	string	—	^[\w\W]{0,1000}$	Shared secret key used for the HMAC variant.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

RIPEMD160 6 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
hmac	string	—	^[\w\W]{0,1000}$	Shared secret key used for the HMAC variant.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

SHA1 6 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
hmac	string	—	^[\w\W]{0,1000}$	Shared secret key used for the HMAC variant.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

SHA256 6 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
hmac	string	—	^[\w\W]{0,1000}$	Shared secret key used for the HMAC variant.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

SHA384 6 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
hmac	string	—	^[\w\W]{0,1000}$	Shared secret key used for the HMAC variant.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

SHA512 6 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
hmac	string	—	^[\w\W]{0,1000}$	Shared secret key used for the HMAC variant.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

SNEFRU 6 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
hmac	string	—	^[\w\W]{0,1000}$	Shared secret key used for the HMAC variant.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

STD-DES 6 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
salt	string	—	^[\w\W]{0,5000}$	Shared secret key used as additional input to defend against some attacks.

TIGER128 7 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
hmac	string	—	^[\w\W]{0,1000}$	Shared secret key used for the HMAC variant.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
rounds	integer	—	3, 4	Number of rounds used by the encryption engine

TIGER128-CALCULATOR 0 options

No options — pass { "category": "hash", "target": "tiger128-calculator" }.

TIGER128-CONVERTER 0 options

No options — pass { "category": "hash", "target": "tiger128-converter" }.

TIGER160 7 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
hmac	string	—	^[\w\W]{0,1000}$	Shared secret key used for the HMAC variant.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
rounds	integer	—	3, 4	Number of rounds used by the encryption engine

TIGER192 7 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
hmac	string	—	^[\w\W]{0,1000}$	Shared secret key used for the HMAC variant.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
rounds	integer	—	3, 4	Number of rounds used by the encryption engine

WHIRLPOOL 6 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
hmac	string	—	^[\w\W]{0,1000}$	Shared secret key used for the HMAC variant.
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options

AVIF 33 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
alpha_channel	string	—	^(auto_create|(#[a-f0-9]{6}))$	Make the background of an image transparent by adding an alpha channel. 'auto_create' will try to detect the background automatically. Specifying a color in the format #rrggbb will set this color to be transparent.
antialias	boolean	—	—
aspect_ratio	string	—	^\d{1,6}:\d{1,6}$	Specify the aspect ratio of the image e.g. 16:9. If used, the options width and height are ignored.
black_white_threshold	integer	—	0–255	Sets the black/white threshold. If set to zero, a calculated average threshold is used
color	string	colored	1900, 1980, colored, gray, monochrome, negate, sepia	Color to apply the image
colorize_model_name	string	—	generic, nature_people	Use Artificial Intelligence to colorize old black and white pictures with a specific training model
colorize_render_factor	int	—	7–40	Use Artificial Intelligence to colorize old black and white pictures with a specific render factor
crop_bottom	integer	—	0–199999	Crop from the bottom. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_height	integer	—	1–200000	Specifies the height in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_left	integer	—	0–199999	Crop from the left side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_x	integer	—	0–199999	Specifies the X origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_y	integer	—	0–199999	Specifies the Y origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_right	integer	—	0–199999	Crop from the right side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_top	integer	—	0–199999	Crop from the top. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_width	integer	—	1–200000	Specifies the width in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
deskew	boolean	—	—
despeckle	boolean	—	—
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
dpi	integer	—	10–1200	Horizontal and vertical density of the image (referred as DPI)
enhance	boolean	—	—
equalize	boolean	—	—
height	number	—	1–200000	Sets the height of the image in pixels or percentage depending on the resize_unit value
mirror	string	—	none, horizontal, vertical	Mirror/flip your image horizontally or vertically
normalize	boolean	—	—
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
resize_by	string	—	px, perc, inches, cm, mm	Sets the unit of measurement for the image's width and height
resize_handling	string	stretch	stretch, keep_aspect_ratio_fill_black, keep_aspect_ratio_fill_white, keep_aspect_ratio_fill_blurred, keep_aspect_ratio_fill_transparent, keep_aspect_ratio_crop	Determine how the resizing of the image should be done. Either by stretching, keeping the original aspect ratio (filling the empty space if needed) or not upscaling the original image.
rotate	integer	—	1–359	Rotate image to specified degrees
sharpen	boolean	—	—
width	number	—	1–200000	Sets the width of the image in pixels or percentage depending on the resize_unit value

BMP 33 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
alpha_channel	string	—	^(auto_create|(#[a-f0-9]{6}))$	Make the background of an image transparent by adding an alpha channel. 'auto_create' will try to detect the background automatically. Specifying a color in the format #rrggbb will set this color to be transparent.
antialias	boolean	—	—
aspect_ratio	string	—	^\d{1,6}:\d{1,6}$	Specify the aspect ratio of the image e.g. 16:9. If used, the options width and height are ignored.
black_white_threshold	integer	—	0–255	Sets the black/white threshold. If set to zero, a calculated average threshold is used
color	string	colored	1900, 1980, colored, gray, monochrome, negate, sepia	Color to apply the image
colorize_model_name	string	—	generic, nature_people	Use Artificial Intelligence to colorize old black and white pictures with a specific training model
colorize_render_factor	int	—	7–40	Use Artificial Intelligence to colorize old black and white pictures with a specific render factor
crop_bottom	integer	—	0–199999	Crop from the bottom. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_height	integer	—	1–200000	Specifies the height in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_left	integer	—	0–199999	Crop from the left side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_x	integer	—	0–199999	Specifies the X origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_y	integer	—	0–199999	Specifies the Y origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_right	integer	—	0–199999	Crop from the right side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_top	integer	—	0–199999	Crop from the top. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_width	integer	—	1–200000	Specifies the width in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
deskew	boolean	—	—
despeckle	boolean	—	—
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
dpi	integer	—	10–1200	Horizontal and vertical density of the image (referred as DPI)
enhance	boolean	—	—
equalize	boolean	—	—
height	number	—	1–200000	Sets the height of the image in pixels or percentage depending on the resize_unit value
mirror	string	—	none, horizontal, vertical	Mirror/flip your image horizontally or vertically
normalize	boolean	—	—
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
resize_by	string	—	px, perc, inches, cm, mm	Sets the unit of measurement for the image's width and height
resize_handling	string	stretch	stretch, keep_aspect_ratio_fill_black, keep_aspect_ratio_fill_white, keep_aspect_ratio_fill_blurred, keep_aspect_ratio_fill_transparent, keep_aspect_ratio_crop	Determine how the resizing of the image should be done. Either by stretching, keeping the original aspect ratio (filling the empty space if needed) or not upscaling the original image.
rotate	integer	—	1–359	Rotate image to specified degrees
sharpen	boolean	—	—
width	number	—	1–200000	Sets the width of the image in pixels or percentage depending on the resize_unit value

EPS 30 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
antialias	boolean	—	—
aspect_ratio	string	—	^\d{1,6}:\d{1,6}$	Specify the aspect ratio of the image e.g. 16:9. If used, the options width and height are ignored.
black_white_threshold	integer	—	0–255	Sets the black/white threshold. If set to zero, a calculated average threshold is used
color	string	colored	1900, 1980, colored, gray, monochrome, negate, sepia	Color to apply the image
colorize_model_name	string	—	generic, nature_people	Use Artificial Intelligence to colorize old black and white pictures with a specific training model
colorize_render_factor	int	—	7–40	Use Artificial Intelligence to colorize old black and white pictures with a specific render factor
crop_bottom	integer	—	0–199999	Crop from the bottom. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_height	integer	—	1–200000	Specifies the height in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_left	integer	—	0–199999	Crop from the left side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_x	integer	—	0–199999	Specifies the X origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_y	integer	—	0–199999	Specifies the Y origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_right	integer	—	0–199999	Crop from the right side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_top	integer	—	0–199999	Crop from the top. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_width	integer	—	1–200000	Specifies the width in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
deskew	boolean	—	—
despeckle	boolean	—	—
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
dpi	integer	—	10–1200	Horizontal and vertical density of the image (referred as DPI)
enhance	boolean	—	—
equalize	boolean	—	—
height	number	—	1–200000	Sets the height of the image in pixels or percentage depending on the resize_unit value
mirror	string	—	none, horizontal, vertical	Mirror/flip your image horizontally or vertically
normalize	boolean	—	—
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
rotate	integer	—	1–359	Rotate image to specified degrees
sharpen	boolean	—	—
width	number	—	1–200000	Sets the width of the image in pixels or percentage depending on the resize_unit value

EXR 30 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
antialias	boolean	—	—
aspect_ratio	string	—	^\d{1,6}:\d{1,6}$	Specify the aspect ratio of the image e.g. 16:9. If used, the options width and height are ignored.
black_white_threshold	integer	—	0–255	Sets the black/white threshold. If set to zero, a calculated average threshold is used
color	string	colored	1900, 1980, colored, gray, monochrome, negate, sepia	Color to apply the image
colorize_model_name	string	—	generic, nature_people	Use Artificial Intelligence to colorize old black and white pictures with a specific training model
colorize_render_factor	int	—	7–40	Use Artificial Intelligence to colorize old black and white pictures with a specific render factor
crop_bottom	integer	—	0–199999	Crop from the bottom. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_height	integer	—	1–200000	Specifies the height in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_left	integer	—	0–199999	Crop from the left side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_x	integer	—	0–199999	Specifies the X origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_y	integer	—	0–199999	Specifies the Y origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_right	integer	—	0–199999	Crop from the right side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_top	integer	—	0–199999	Crop from the top. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_width	integer	—	1–200000	Specifies the width in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
deskew	boolean	—	—
despeckle	boolean	—	—
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
dpi	integer	—	10–1200	Horizontal and vertical density of the image (referred as DPI)
enhance	boolean	—	—
equalize	boolean	—	—
height	number	—	1–200000	Sets the height of the image in pixels or percentage depending on the resize_unit value
mirror	string	—	none, horizontal, vertical	Mirror/flip your image horizontally or vertically
normalize	boolean	—	—
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
rotate	integer	—	1–359	Rotate image to specified degrees
sharpen	boolean	—	—
width	number	—	1–200000	Sets the width of the image in pixels or percentage depending on the resize_unit value

GIF 38 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
alpha_channel	string	—	^(auto_create|(#[a-f0-9]{6}))$	Make the background of an image transparent by adding an alpha channel. 'auto_create' will try to detect the background automatically. Specifying a color in the format #rrggbb will set this color to be transparent.
antialias	boolean	—	—
aspect_ratio	string	—	^\d{1,6}:\d{1,6}$	Specify the aspect ratio of the image e.g. 16:9. If used, the options width and height are ignored.
black_white_threshold	integer	—	0–255	Sets the black/white threshold. If set to zero, a calculated average threshold is used
color	string	colored	1900, 1980, colored, gray, monochrome, negate, sepia	Color to apply the image
colorize_model_name	string	—	generic, nature_people	Use Artificial Intelligence to colorize old black and white pictures with a specific training model
colorize_render_factor	int	—	7–40	Use Artificial Intelligence to colorize old black and white pictures with a specific render factor
compress	string	—	none, low, medium, high, best	If set, this option tries to compress your file even more with no perceivable loss of quality
crop_bottom	integer	—	0–199999	Crop from the bottom. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_height	integer	—	1–200000	Specifies the height in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_left	integer	—	0–199999	Crop from the left side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_x	integer	—	0–199999	Specifies the X origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_y	integer	—	0–199999	Specifies the Y origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_right	integer	—	0–199999	Crop from the right side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_top	integer	—	0–199999	Crop from the top. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_width	integer	—	1–200000	Specifies the width in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
deskew	boolean	—	—
despeckle	boolean	—	—
do_not_flatten	boolean	—	—	Do not flatten the image
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
dpi	integer	—	10–1200	Horizontal and vertical density of the image (referred as DPI)
enhance	boolean	—	—
equalize	boolean	—	—
framerate	integer	—	6–30	Specifies the video frames per second
height	number	—	1–200000	Sets the height of the image in pixels or percentage depending on the resize_unit value
input_colorspace	string	—	sRGB	Sets the input image's colorspace
interlace	string	—	line, none, plane	Sets the type of interlacing scheme
iterations	integer	—	1–256	This option specifies the number of times the animation will repeat before coming to a stop.
mirror	string	—	none, horizontal, vertical	Mirror/flip your image horizontally or vertically
normalize	boolean	—	—
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
resize_handling	string	stretch	stretch, keep_aspect_ratio_fill_black, keep_aspect_ratio_fill_white, keep_aspect_ratio_fill_blurred, keep_aspect_ratio_fill_transparent, keep_aspect_ratio_crop	Determine how the resizing of the image should be done. Either by stretching, keeping the original aspect ratio (filling the empty space if needed) or not upscaling the original image.
rotate	integer	—	1–359	Rotate image to specified degrees
sharpen	boolean	—	—
width	number	—	1–200000	Sets the width of the image in pixels or percentage depending on the resize_unit value

ICO 32 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
alpha_channel	string	—	^(auto_create|(#[a-f0-9]{6}))$	Make the background of an image transparent by adding an alpha channel. 'auto_create' will try to detect the background automatically. Specifying a color in the format #rrggbb will set this color to be transparent.
antialias	boolean	—	—
aspect_ratio	string	—	^\d{1,6}:\d{1,6}$	Specify the aspect ratio of the image e.g. 16:9. If used, the options width and height are ignored.
black_white_threshold	integer	—	0–255	Sets the black/white threshold. If set to zero, a calculated average threshold is used
color	string	colored	1900, 1980, colored, gray, monochrome, negate, sepia	Color to apply the image
colorize_model_name	string	—	generic, nature_people	Use Artificial Intelligence to colorize old black and white pictures with a specific training model
colorize_render_factor	int	—	7–40	Use Artificial Intelligence to colorize old black and white pictures with a specific render factor
crop_bottom	integer	—	0–199999	Crop from the bottom. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_height	integer	—	1–200000	Specifies the height in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_left	integer	—	0–199999	Crop from the left side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_x	integer	—	0–199999	Specifies the X origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_y	integer	—	0–199999	Specifies the Y origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_right	integer	—	0–199999	Crop from the right side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_top	integer	—	0–199999	Crop from the top. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_width	integer	—	1–200000	Specifies the width in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
deskew	boolean	—	—
despeckle	boolean	—	—
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
dpi	integer	—	10–1200	Horizontal and vertical density of the image (referred as DPI)
enhance	boolean	—	—
equalize	boolean	—	—
height	integer	—	1–256	Specifies the screen height in pixels
mirror	string	—	none, horizontal, vertical	Mirror/flip your image horizontally or vertically
normalize	boolean	—	—
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
resize_handling	string	stretch	stretch, keep_aspect_ratio_fill_black, keep_aspect_ratio_fill_white, keep_aspect_ratio_fill_blurred, keep_aspect_ratio_fill_transparent, keep_aspect_ratio_crop	Determine how the resizing of the image should be done. Either by stretching, keeping the original aspect ratio (filling the empty space if needed) or not upscaling the original image.
rotate	integer	—	1–359	Rotate image to specified degrees
sharpen	boolean	—	—
width	integer	—	1–256	Specifies the screen width in pixels

JPG 38 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
antialias	boolean	—	—
aspect_ratio	string	—	^\d{1,6}:\d{1,6}$	Specify the aspect ratio of the image e.g. 16:9. If used, the options width and height are ignored.
black_white_threshold	integer	—	0–255	Sets the black/white threshold. If set to zero, a calculated average threshold is used
color	string	colored	1900, 1980, colored, gray, monochrome, negate, sepia	Color to apply the image
colorize_model_name	string	—	generic, nature_people	Use Artificial Intelligence to colorize old black and white pictures with a specific training model
colorize_render_factor	int	—	7–40	Use Artificial Intelligence to colorize old black and white pictures with a specific render factor
colorspace	string	—	CMYK, Gray, HSL, HSV, LAB, RGB, sRGB, YCbCr	Sets the image's colorspace
compress	string	—	none, low, medium, high, best	If set, this option tries to compress your file even more with no perceivable loss of quality
crop_bottom	integer	—	0–199999	Crop from the bottom. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_height	integer	—	1–200000	Specifies the height in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_left	integer	—	0–199999	Crop from the left side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_x	integer	—	0–199999	Specifies the X origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_y	integer	—	0–199999	Specifies the Y origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_right	integer	—	0–199999	Crop from the right side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_top	integer	—	0–199999	Crop from the top. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_width	integer	—	1–200000	Specifies the width in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
deskew	boolean	—	—
despeckle	boolean	—	—
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
dpi	integer	—	10–1200	Horizontal and vertical density of the image (referred as DPI)
enhance	boolean	—	—
equalize	boolean	—	—
height	number	—	1–200000	Sets the height of the image in pixels or percentage depending on the resize_unit value
interlace	string	—	line, none, plane	Sets the type of interlacing scheme
mirror	string	—	none, horizontal, vertical	Mirror/flip your image horizontally or vertically
normalize	boolean	—	—
number_of_frames	integer	—	1–500	Specifies the number of frames to extract from a video file
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
quality	integer	—	0–100	Level of quality from 0 (worst quality, smaller file size) to 100 (best quality, greater file size)
resize_by	string	—	px, perc, inches, cm, mm	Sets the unit of measurement for the image's width and height
resize_handling	string	stretch	stretch, keep_aspect_ratio_fill_black, keep_aspect_ratio_fill_white, keep_aspect_ratio_fill_blurred, keep_aspect_ratio_crop	Determine how the resizing of the image should be done. Either by stretching, keeping the original aspect ratio (filling the empty space if needed) or not upscaling the original image.
rotate	integer	—	1–359	Rotate image to specified degrees
sampling_factor	string	—	4:4:4, 4:4:0, 4:2:2, 4:2:0, 4:1:1, 4:1:0	Sets the chroma sub-sampling method to use
sharpen	boolean	—	—
width	number	—	1–200000	Sets the width of the image in pixels or percentage depending on the resize_unit value

PNG 37 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
alpha_channel	string	—	^(auto_create|(#[a-f0-9]{6}))$	Make the background of an image transparent by adding an alpha channel. 'auto_create' will try to detect the background automatically. Specifying a color in the format #rrggbb will set this color to be transparent.
antialias	boolean	—	—
aspect_ratio	string	—	^\d{1,6}:\d{1,6}$	Specify the aspect ratio of the image e.g. 16:9. If used, the options width and height are ignored.
black_white_threshold	integer	—	0–255	Sets the black/white threshold. If set to zero, a calculated average threshold is used
color	string	colored	1900, 1980, colored, gray, monochrome, negate, sepia	Color to apply the image
colorize_model_name	string	—	generic, nature_people	Use Artificial Intelligence to colorize old black and white pictures with a specific training model
colorize_render_factor	int	—	7–40	Use Artificial Intelligence to colorize old black and white pictures with a specific render factor
colorspace	string	—	CMYK, Gray, HSL, HSV, LAB, RGB, sRGB, YCbCr	Sets the image's colorspace
compress	string	—	none, low, medium, high, best	If set, this option tries to compress your file even more with no perceivable loss of quality
crop_bottom	integer	—	0–199999	Crop from the bottom. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_height	integer	—	1–200000	Specifies the height in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_left	integer	—	0–199999	Crop from the left side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_x	integer	—	0–199999	Specifies the X origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_y	integer	—	0–199999	Specifies the Y origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_right	integer	—	0–199999	Crop from the right side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_top	integer	—	0–199999	Crop from the top. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_width	integer	—	1–200000	Specifies the width in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
deskew	boolean	—	—
despeckle	boolean	—	—
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
dpi	integer	—	10–1200	Horizontal and vertical density of the image (referred as DPI)
enhance	boolean	—	—
equalize	boolean	—	—
height	number	—	1–200000	Sets the height of the image in pixels or percentage depending on the resize_unit value
interlace	string	—	line, none, plane	Sets the type of interlacing scheme
mirror	string	—	none, horizontal, vertical	Mirror/flip your image horizontally or vertically
normalize	boolean	—	—
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
quality	integer	—	0–100	Level of quality from 0 (worst quality, smaller file size) to 100 (best quality, greater file size)
resize_by	string	—	px, perc, inches, cm, mm	Sets the unit of measurement for the image's width and height
resize_handling	string	stretch	stretch, keep_aspect_ratio_fill_black, keep_aspect_ratio_fill_white, keep_aspect_ratio_fill_blurred, keep_aspect_ratio_fill_transparent, keep_aspect_ratio_crop	Determine how the resizing of the image should be done. Either by stretching, keeping the original aspect ratio (filling the empty space if needed) or not upscaling the original image.
rotate	integer	—	1–359	Rotate image to specified degrees
sharpen	boolean	—	—
width	number	—	1–200000	Sets the width of the image in pixels or percentage depending on the resize_unit value

SVG 31 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
alpha_channel	string	—	^(auto_create|(#[a-f0-9]{6}))$	Make the background of an image transparent by adding an alpha channel. 'auto_create' will try to detect the background automatically. Specifying a color in the format #rrggbb will set this color to be transparent.
antialias	boolean	—	—
aspect_ratio	string	—	^\d{1,6}:\d{1,6}$	Specify the aspect ratio of the image e.g. 16:9. If used, the options width and height are ignored.
black_white_threshold	integer	—	0–100	Sets a threshold to decide which area will become black and which white. 100 = full black
color	string	colored	1900, 1980, colored, gray, monochrome, negate, sepia	Color to apply the image
crop_bottom	integer	—	0–199999	Crop from the bottom. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_height	integer	—	1–200000	Specifies the height in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_left	integer	—	0–199999	Crop from the left side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_x	integer	—	0–199999	Specifies the X origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_y	integer	—	0–199999	Specifies the Y origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_right	integer	—	0–199999	Crop from the right side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_top	integer	—	0–199999	Crop from the top. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_width	integer	—	1–200000	Specifies the width in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
deskew	boolean	—	—
despeckle	boolean	—	—
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
dpi	integer	—	10–1200	Horizontal and vertical density of the image (referred as DPI)
enhance	boolean	—	—
equalize	boolean	—	—
height	number	—	1–200000	Sets the height of the image in pixels or percentage depending on the resize_unit value
mirror	string	—	none, horizontal, vertical	Mirror/flip your image horizontally or vertically
normalize	boolean	—	—
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
rotate	integer	—	1–359	Rotate image to specified degrees
sharpen	boolean	—	—
speckles_threshold	integer	—	8–10000000	The min length in pixels of a closed line to be recognized as a vectorial path
svg_engine	string	—	green_strawberry, blue_apple, yellow_orange	Selects a specific engine for SVG conversions
width	number	—	1–200000	Sets the width of the image in pixels or percentage depending on the resize_unit value

TGA 33 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
alpha_channel	string	—	^(auto_create|(#[a-f0-9]{6}))$	Make the background of an image transparent by adding an alpha channel. 'auto_create' will try to detect the background automatically. Specifying a color in the format #rrggbb will set this color to be transparent.
antialias	boolean	—	—
aspect_ratio	string	—	^\d{1,6}:\d{1,6}$	Specify the aspect ratio of the image e.g. 16:9. If used, the options width and height are ignored.
black_white_threshold	integer	—	0–255	Sets the black/white threshold. If set to zero, a calculated average threshold is used
color	string	colored	1900, 1980, colored, gray, monochrome, negate, sepia	Color to apply the image
colorize_model_name	string	—	generic, nature_people	Use Artificial Intelligence to colorize old black and white pictures with a specific training model
colorize_render_factor	int	—	7–40	Use Artificial Intelligence to colorize old black and white pictures with a specific render factor
colorspace	string	—	CMYK, Gray, HSL, HSV, LAB, RGB, sRGB, YCbCr	Sets the image's colorspace
crop_bottom	integer	—	0–199999	Crop from the bottom. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_height	integer	—	1–200000	Specifies the height in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_left	integer	—	0–199999	Crop from the left side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_x	integer	—	0–199999	Specifies the X origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_y	integer	—	0–199999	Specifies the Y origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_right	integer	—	0–199999	Crop from the right side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_top	integer	—	0–199999	Crop from the top. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_width	integer	—	1–200000	Specifies the width in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
deskew	boolean	—	—
despeckle	boolean	—	—
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
dpi	integer	—	10–1200	Horizontal and vertical density of the image (referred as DPI)
enhance	boolean	—	—
equalize	boolean	—	—
height	number	—	1–200000	Sets the height of the image in pixels or percentage depending on the resize_unit value
mirror	string	—	none, horizontal, vertical	Mirror/flip your image horizontally or vertically
normalize	boolean	—	—
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
resize_handling	string	stretch	stretch, keep_aspect_ratio_fill_black, keep_aspect_ratio_fill_white, keep_aspect_ratio_fill_blurred, keep_aspect_ratio_fill_transparent, keep_aspect_ratio_crop	Determine how the resizing of the image should be done. Either by stretching, keeping the original aspect ratio (filling the empty space if needed) or not upscaling the original image.
rotate	integer	—	1–359	Rotate image to specified degrees
sharpen	boolean	—	—
width	number	—	1–200000	Sets the width of the image in pixels or percentage depending on the resize_unit value

TIF 36 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
alpha_channel	string	—	^(auto_create|(#[a-f0-9]{6}))$	Make the background of an image transparent by adding an alpha channel. 'auto_create' will try to detect the background automatically. Specifying a color in the format #rrggbb will set this color to be transparent.
antialias	boolean	—	—
aspect_ratio	string	—	^\d{1,6}:\d{1,6}$	Specify the aspect ratio of the image e.g. 16:9. If used, the options width and height are ignored.
bitdepth	integer	—	1, 8, 16, 32	Change the bit depth resolution per sample
black_white_threshold	integer	—	0–255	Sets the black/white threshold. If set to zero, a calculated average threshold is used
color	string	colored	1900, 1980, colored, gray, monochrome, negate, sepia	Color to apply the image
colorize_model_name	string	—	generic, nature_people	Use Artificial Intelligence to colorize old black and white pictures with a specific training model
colorize_render_factor	int	—	7–40	Use Artificial Intelligence to colorize old black and white pictures with a specific render factor
colorspace	string	—	CMYK, Gray, HSL, HSV, LAB, RGB, sRGB, YCbCr	Sets the image's colorspace
crop_bottom	integer	—	0–199999	Crop from the bottom. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_height	integer	—	1–200000	Specifies the height in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_left	integer	—	0–199999	Crop from the left side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_x	integer	—	0–199999	Specifies the X origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_y	integer	—	0–199999	Specifies the Y origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_right	integer	—	0–199999	Crop from the right side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_top	integer	—	0–199999	Crop from the top. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_width	integer	—	1–200000	Specifies the width in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
deskew	boolean	—	—
despeckle	boolean	—	—
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
dpi	integer	—	10–1200	Horizontal and vertical density of the image (referred as DPI)
enhance	boolean	—	—
equalize	boolean	—	—
height	number	—	1–200000	Sets the height of the image in pixels or percentage depending on the resize_unit value
mirror	string	—	none, horizontal, vertical	Mirror/flip your image horizontally or vertically
multilayer	boolean		—	The result will either be a single file with multiple layers or multiple files where each contains a single layer
normalize	boolean	—	—
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
resize_by	string	—	px, perc, inches, cm, mm	Sets the unit of measurement for the image's width and height
resize_handling	string	stretch	stretch, keep_aspect_ratio_fill_black, keep_aspect_ratio_fill_white, keep_aspect_ratio_fill_blurred, keep_aspect_ratio_fill_transparent, keep_aspect_ratio_crop	Determine how the resizing of the image should be done. Either by stretching, keeping the original aspect ratio (filling the empty space if needed) or not upscaling the original image.
rotate	integer	—	1–359	Rotate image to specified degrees
sharpen	boolean	—	—
width	number	—	1–200000	Sets the width of the image in pixels or percentage depending on the resize_unit value

TIFF 36 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
alpha_channel	string	—	^(auto_create|(#[a-f0-9]{6}))$	Make the background of an image transparent by adding an alpha channel. 'auto_create' will try to detect the background automatically. Specifying a color in the format #rrggbb will set this color to be transparent.
antialias	boolean	—	—
aspect_ratio	string	—	^\d{1,6}:\d{1,6}$	Specify the aspect ratio of the image e.g. 16:9. If used, the options width and height are ignored.
bitdepth	integer	—	1, 8, 16, 32	Change the bit depth resolution per sample
black_white_threshold	integer	—	0–255	Sets the black/white threshold. If set to zero, a calculated average threshold is used
color	string	colored	1900, 1980, colored, gray, monochrome, negate, sepia	Color to apply the image
colorize_model_name	string	—	generic, nature_people	Use Artificial Intelligence to colorize old black and white pictures with a specific training model
colorize_render_factor	int	—	7–40	Use Artificial Intelligence to colorize old black and white pictures with a specific render factor
colorspace	string	—	CMYK, Gray, HSL, HSV, LAB, RGB, sRGB, YCbCr	Sets the image's colorspace
crop_bottom	integer	—	0–199999	Crop from the bottom. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_height	integer	—	1–200000	Specifies the height in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_left	integer	—	0–199999	Crop from the left side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_x	integer	—	0–199999	Specifies the X origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_y	integer	—	0–199999	Specifies the Y origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_right	integer	—	0–199999	Crop from the right side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_top	integer	—	0–199999	Crop from the top. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_width	integer	—	1–200000	Specifies the width in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
deskew	boolean	—	—
despeckle	boolean	—	—
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
dpi	integer	—	10–1200	Horizontal and vertical density of the image (referred as DPI)
enhance	boolean	—	—
equalize	boolean	—	—
height	number	—	1–200000	Sets the height of the image in pixels or percentage depending on the resize_unit value
mirror	string	—	none, horizontal, vertical	Mirror/flip your image horizontally or vertically
multilayer	boolean		—	The result will either be a single file with multiple layers or multiple files where each contains a single layer
normalize	boolean	—	—
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
resize_by	string	—	px, perc, inches, cm, mm	Sets the unit of measurement for the image's width and height
resize_handling	string	stretch	stretch, keep_aspect_ratio_fill_black, keep_aspect_ratio_fill_white, keep_aspect_ratio_fill_blurred, keep_aspect_ratio_fill_transparent, keep_aspect_ratio_crop	Determine how the resizing of the image should be done. Either by stretching, keeping the original aspect ratio (filling the empty space if needed) or not upscaling the original image.
rotate	integer	—	1–359	Rotate image to specified degrees
sharpen	boolean	—	—
width	number	—	1–200000	Sets the width of the image in pixels or percentage depending on the resize_unit value

WBMP 30 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
antialias	boolean	—	—
aspect_ratio	string	—	^\d{1,6}:\d{1,6}$	Specify the aspect ratio of the image e.g. 16:9. If used, the options width and height are ignored.
black_white_threshold	integer	—	0–255	Sets the black/white threshold. If set to zero, a calculated average threshold is used
color	string	colored	1900, 1980, colored, gray, monochrome, negate, sepia	Color to apply the image
colorize_model_name	string	—	generic, nature_people	Use Artificial Intelligence to colorize old black and white pictures with a specific training model
colorize_render_factor	int	—	7–40	Use Artificial Intelligence to colorize old black and white pictures with a specific render factor
crop_bottom	integer	—	0–199999	Crop from the bottom. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_height	integer	—	1–200000	Specifies the height in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_left	integer	—	0–199999	Crop from the left side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_x	integer	—	0–199999	Specifies the X origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_y	integer	—	0–199999	Specifies the Y origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_right	integer	—	0–199999	Crop from the right side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_top	integer	—	0–199999	Crop from the top. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_width	integer	—	1–200000	Specifies the width in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
deskew	boolean	—	—
despeckle	boolean	—	—
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
dpi	integer	—	10–1200	Horizontal and vertical density of the image (referred as DPI)
enhance	boolean	—	—
equalize	boolean	—	—
height	number	—	1–200000	Sets the height of the image in pixels or percentage depending on the resize_unit value
mirror	string	—	none, horizontal, vertical	Mirror/flip your image horizontally or vertically
normalize	boolean	—	—
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
rotate	integer	—	1–359	Rotate image to specified degrees
sharpen	boolean	—	—
width	number	—	1–200000	Sets the width of the image in pixels or percentage depending on the resize_unit value

WEBP 32 options

Option	Type	Default	Allowed / range	Description
allow_multiple_outputs	boolean		—	If the conversion produces more than one output file, by default all of them are compressed in just one file. Set this option to true if you want a download link for each file.
allow_multiple_outputs_threshold	integer	—	2–400	Sets the threshold for the number of output files during conversion. This option is considered only when `allow_multiple_outputs` is set to true. If the generated output files exceed this threshold, they are compressed into one file. Conversely, if the threshold is not met, each output file remains uncompressed.
antialias	boolean	—	—
aspect_ratio	string	—	^\d{1,6}:\d{1,6}$	Specify the aspect ratio of the image e.g. 16:9. If used, the options width and height are ignored.
black_white_threshold	integer	—	0–255	Sets the black/white threshold. If set to zero, a calculated average threshold is used
color	string	colored	1900, 1980, colored, gray, monochrome, negate, sepia	Color to apply the image
colorize_model_name	string	—	generic, nature_people	Use Artificial Intelligence to colorize old black and white pictures with a specific training model
colorize_render_factor	int	—	7–40	Use Artificial Intelligence to colorize old black and white pictures with a specific render factor
crop_bottom	integer	—	0–199999	Crop from the bottom. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_height	integer	—	1–200000	Specifies the height in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_left	integer	—	0–199999	Crop from the left side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_x	integer	—	0–199999	Specifies the X origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_origin_y	integer	—	0–199999	Specifies the Y origin coordinate in pixels of the crop area starting from the upmost left corner of the image. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_right	integer	—	0–199999	Crop from the right side. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_top	integer	—	0–199999	Crop from the top. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
crop_width	integer	—	1–200000	Specifies the width in pixels of the crop area. Use either the cropping from crop_top/bottom/left/right or crop_origin_x/y and crop_width/height.
deskew	boolean	—	—
despeckle	boolean	—	—
download_password	string	—	^[ -~]{0,1000}$	A password to protect the download. To download the file send the password in the x-oc-download-password header or set a cookie named x-oc-download-password. The value contains a comma separated list of passwords.
dpi	integer	—	10–1200	Horizontal and vertical density of the image (referred as DPI)
enhance	boolean	—	—
equalize	boolean	—	—
height	number	—	1–200000	Sets the height of the image in pixels or percentage depending on the resize_unit value
mirror	string	—	none, horizontal, vertical	Mirror/flip your image horizontally or vertically
normalize	boolean	—	—
output_filename	string	—	^[\w\W]{0,255}$	The desired file name of the converted file WITHOUT the file extension.
preset	string	—	^[\w\W]{1,255}$	Predefined options
resize_by	string	—	px, perc, inches, cm, mm	Sets the unit of measurement for the image's width and height
resize_handling	string	stretch	stretch, keep_aspect_ratio_fill_black, keep_aspect_ratio_fill_white, keep_aspect_ratio_fill_blurred, keep_aspect_ratio_fill_transparent, keep_aspect_ratio_crop	Determine how the resizing of the image should be done. Either by stretching, keeping the original aspect ratio (filling the empty space if needed) or not upscaling the original image.
rotate	integer	—	1–359	Rotate image to specified degrees
sharpen	boolean	—	—
width	number	—	1–200000	Sets the width of the image in pixels or percentage depending on the resize_unit value