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Posted to fop-dev@xmlgraphics.apache.org by bu...@apache.org on 2006/10/04 23:17:54 UTC

DO NOT REPLY [Bug 40676] - png graphics are expanded/uncompressed in pdf causing massive file size increase

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http://issues.apache.org/bugzilla/show_bug.cgi?id=40676


jeremias@apache.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |enhancement
             Status|NEW                         |ASSIGNED
          Component|pdf                         |images
            Version|0.92                        |1.0dev




------- Additional Comments From jeremias@apache.org  2006-10-04 14:17 -------
PNG images are currently decompressed, normalized to RGBA (32bit) and then
recompressed for PDF. Of course, that's suboptimal.

Yes, it's theoretically possible to embed the compressed PNG data directly in
the PDF. This is something that is on my task list for the next three months as
part of a general redesign of the image adapter package which is also
responsible for the implicit conversion to RGBA of the image.

Work-arounds for you: Yes, please try a vector format, preferably SVG because we
can handle this natively. Your equations will look much nicer.

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