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Flatten transparency without lossy JPEG compression

Forum Index > Printing & Prepress > Flatten transparency without lossy JPEG compression
2008-10-30 06:12:50
frank_spangenberg
Registered: Sep 18 2006
Posts: 8

Acrobat is using lossy JPEG compression (quality: medium) on some images after transparent objects were flattened. Even if the images had a ZIP compression before, Acrobat will use a lossy JPEG compression. The result is a loss of quality. There are also differences in quality within a single image, cause some images are divided in parts with a ZIP compression and with a lossy JPEG compression.

Is there a workaround to use Acrobat's transparency flattening without JPEG compression? The problem appears in Acrobat 7, 8 and 9.

My Product Information:
Acrobat Pro 9.0, Windows
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2011-02-13 09:16:14
#1
mparento
Registered: Feb 11 2011
Posts: 1
Where I work, we have that same problem. We have to flatten the transparency but the quality of the output is much lower than the original PDF. The best way we found to get good results is to "refry" the PDF (PDF > Postscript > Distiller > PDF). That procedure, however, is usually considered inadvisable. How can we get the same quality without refrying?
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