Step 3: Export to PDF/A MRC

PDF/A is new in CLI OCR Version 9.0, so the export format is not available in V8.

PDF/A Standard Keys – PDF/A MRC Keys

Note: If you would like to tune PDFA Mixed Raster Content parameters manually, please use the following order of MRC keys in your CLI command:

if needed, specify MRC compression level using -pamcl key
specify other MRC keys.

--pdfaMrcMRCEnabled

This key specifies whether tuning Mixed Raster Content (MRC) parameters is enabled. By default, MRC is disabled.

Key	Parameters	Default
-pamrc	no
-pamrc	–pdfaMrcMRCEnabled

--pdfaMrcBackgroundColor

This key specifies the background color. You can use -pambc key with original parameter. In this case, the background color will be detected automatically based on the original background. By default the background color is white or RGB(255,255,255).

Key	Parameters	Default
-pambc	lor in RGB format or original string parameter	0xffffff
-pambc	–pdfaMrcBackgroundColor

--pdfaMrcBackgroundDownSampling

This key specifies the down sampling rate of the background. Only a positive rate makes sense.

Key	Parameters	Default
-pambds	background down sampling rate	4
-pambds	–pdfaMrcBackgroundDownSampling

--pdfaMrcBackgroundFormat

This key specifies the background format.

Key	Parameters	Default
-pambf	JpegColor, JpegGray (see descriptions in ExportPictureFormatEnum)	JpegColor
-pambf	–pdfaMrcBackgroundFormat

--pdfaMrcBackgroundQuality

This key specifies the value of JPEG compression for background color in percentage points.

Key	Parameters	Default
-pambq	background JPEG quality in percent	5
-pambq	–pdfaMrcBackgroundQuality

--pdfaMrcColorMaskDownSampling

This key specifies the down sampling rate of the color mask. Only a positive rate makes sense.

Key	Parameters	Default
-pamcmds	color mask down sampling rate	4
-pamcmds	–pdfaMrcColorMaskDownSampling

--pdfaMrcColorMaskFormat

This key specifies the color mask format.

Key	Parameters	Default
-pamcmf	JpegColor JpegGray ZipColor (see descriptions in ExportPictureFormatEnum)	ZipColor
-pamcmf	–pdfaMrcColorMaskFormat

--pdfaMrcColorMaskQuality

This key specifies the color mask JPEG quality in percentage points. The bigger the value, the better the quality.

Key	Parameters	Default
-pamcmq	color mask JPEG quality in percent	30
-pamcmq	–pdfaMrcColorMaskQuality

--pdfaMrcCompressionLevel

This key specifies the MRC compression level.

Key	Parameters	Default
-pamcl	LowCompression AvgCompression MaxCompression Custom (see descriptions in PDFMRCCompressionLevelEnum)	AvgCompression
-pamcl	–pdfaMrcCompressionLevel

--pdfaMrcDoNotKeepBackground

This key specifies not to keep the original background during export to PDF/A. If -pamnkb key is not used, the original background is retained.

Key	Parameters	Default
-pamnkb	no
-pamnkb	–pdfaMrcDoNotKeepBackground

--pdfaMrcNotMonochromeText

When this key is not used, the recognized text is monochrome. Also if you do not use -pamnmt key, you can specify the text color using -pamtc key.

Key	Parameters	Default
-pamnmt	no
-pamnmt	–pdfaMrcNotMonochromeText

--pdfaMrcPicturesInBackground

This key specifies whether pictures should be considered as parts of the background. If you use -pampib key, the background compression options are used for the pictures. When you do not use this key, pictures are not considered as parts of the background.

Key	Parameters	Default
-pampib	no
-pampib	–pdfaMrcPicturesInBackground

--pdfaMrcTextColor

This key specifies the text color in monochrome mode, i.e., only when -pamnmt key is not used. By default, the text color is black or RGB(0,0,0).

Key	Parameters	Default
-pamtc	color in RGB format	0x000000
-pamtc	–pdfaMrcTextColor

--pdfaMrcTextMaskDownSampling

This key specifies the down sampling rate of the text mask. Only a positive rate makes sense.

Key	Parameters	Default
-pamtmds	text mask down sampling rate
-pamtmds	–pdfaMrcTextMaskDownSampling

--pdfaMrcTextMaskFormat

This key specifies the text mask compression algorithm.

Key	Parameters	Default
-pamtmf	CCITT4 JBIG2 (see descriptions in ExportPictureFormatEnum)	JBIG2
-pamtmf	–pdfaMrcTextMaskFormat

--pdfaMrcTextMaskQuality

This key specifies the text mask quality in percentage points. The bigger the value, the better the quality.

Key	Parameters	Default
-pamtmq	text mask JPEG quality in percent	75
-pamtmq	–pdfaMrcTextMaskQuality

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