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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 | |
| –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 |
| –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 |
| –pdfaMrcBackgroundDownSampling | ||
--pdfaMrcBackgroundFormat
-
This key specifies the background format.
| Key | Parameters | Default |
|---|---|---|
| -pambf | JpegColor, JpegGray (see descriptions in ExportPictureFormatEnum) |
JpegColor |
| –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 |
| –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 |
| –pdfaMrcColorMaskDownSampling | ||
--pdfaMrcColorMaskFormat
-
This key specifies the color mask format.
| Key | Parameters | Default |
|---|---|---|
| -pamcmf | JpegColor JpegGray ZipColor (see descriptions in ExportPictureFormatEnum) |
ZipColor |
| –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 |
| –pdfaMrcColorMaskQuality | ||
--pdfaMrcCompressionLevel
-
This key specifies the MRC compression level.
| Key | Parameters | Default |
|---|---|---|
| -pamcl | LowCompression AvgCompression MaxCompression Custom (see descriptions in PDFMRCCompressionLevelEnum) |
AvgCompression |
| –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 | |
| –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 | |
| –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 | |
| –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 |
| –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 | |
| –pdfaMrcTextMaskDownSampling | ||
--pdfaMrcTextMaskFormat
-
This key specifies the text mask compression algorithm.
| Key | Parameters | Default |
|---|---|---|
| -pamtmf | CCITT4 JBIG2 (see descriptions in ExportPictureFormatEnum) |
JBIG2 |
| –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 |
| –pdfaMrcTextMaskQuality | ||
