What it does
Recompresses color, grayscale and single-bit images in the PDF.
This may reduce the size of your PDF file.
For more information, refer to the chapter "Compressing pixel images" in the
PitStop Pro Reference Guide available on the Enfocus website.
How to proceed
- For each of the image types, select the appropriate compression method:
- Keep original compression
- No compression
- ZIP, JPEG or
JPEG2000 (for color and grayscale images)
- ZIP, CCITT Group 3, CCITT Group
4, Runlength (for single-bit images)
- If you have chosen JPEG or JPEG2000 in step 1, select the appropriate quality level.
Note:
- The higher the quality level, the more detail in the image will be preserved, but the
larger the size of your PDF file will be.
- In case of JPEG2000, "lossless compression" is supported.
- If you need to transmit your PDF documents through channels where only ASCII characters
are allowed, select the appropriate ASCII filter. Note that ASCII HEX
may double the image data size, whereas ASCII 85 may increase it by
approximately 25%.
Otherwise choose No filter.