Compression
The Compression properties determine the compression format used for text and images. Please note that all properties are case-sensitive:
NAME
|
VALUES
|
DEFINITION |
Graphics |
|
Specifies PDF document compression. If this value is true then compression methods for different image types are defined in the Color, Indexed and Mono subsections.
Default value: True
|
Text |
If this value is true then text-based content of PDF pages are compressed in order to reduce the resultant file size.
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Color
These properties specify the compression for True color images:
NAME
|
VALUES
|
DEFINITION |
Enabled
|
|
Default value: True
|
Method |
0 (Auto) 1 (JPEG) 2 (ZIP) 3 (JPEGZIP) 4 (J2K) 5 (J2KZIP)
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Specifies the compression method used for the compression of True color images.
Please that that if the PDF/A format is being used then the compression formats J2K and J2KZIP cannot be used.
Default value: 0 (Auto)
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JPEGQuality
|
1-100 |
Specifies the image quality when JPEG compression is used (both JPEG and JPEGZIP). Please note that increasing quality will increase image definition but result in a larger compressed stream, resulting in a larger file.
Default value: 75
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Indexed
These properties specify the compression for indexed images:
NAME
|
VALUES
|
DEFINITION |
Enabled
|
|
If this property is true then indexed images will be compressed in the manner specified in the Method section. Otherwise they will be stored in PDF and without compression.
Default value: True
|
Method |
0 (Auto) 1 (Packbits) 2 (ZIP) 3 (LZW) |
Defines the compression method to be used to compress images with palette. Please note that LZW compression cannot be used with the PDF/A output specification.
Default value: 0 (Auto)
|
Mono
These properties specify the compression for monochrome/black & white images:
NAME
|
VALUES
|
DEFINITION |
Enabled
|
|
Default value: True
|
Method |
0 (Auto) 1 (ZIP) 2 (CCITT3) 3 (CCITT4) 4 (RLE) 5 (JBIG2)
|
Defines the compression method to be used to compress monochrome/black 7 white images.
Please note that JBIG2 compression cannot be used with the PDF/A output specification.
Default value: 0 (Auto)
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JBIG2Method
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0 (Standard) 1 (CropBorders) 2 (Symbols)
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Specifies preprocessing method of images compressed using JBIG2 compression.
Default value: 0 (Standard)
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