[Poppler-bugs] [Bug 31926] pdftops-0.15.2 -level1sep inverts the image mask polarity

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=31926

--- Comment #9 from William Bader <williambader at hotmail.com> 2010-11-28 14:30:18 PST ---
Created an attachment (id=40621)
 View: https://bugs.freedesktop.org/attachment.cgi?id=40621
 Review: https://bugs.freedesktop.org/review?bug=31926&attachment=40621

add a comment to the trailer when pdftops creates incorrect output

This patch writes the comment "%%XHasColorPattern" to the postscript trailer
when pdftops runs with -level1 or -level1sep and finds an image where
state->getFillColorSpace()->getMode() == csPattern.
The generated postscript will not get postscript errors printing, but it will
not produce the same image as the PDF.  The level1 output code in
PSOutputDev.cc does not support this case, and the generated postscript will
often display a white or black rectangle over part of the image.
This patch allows applications that depend on level1 output from pdftops to
detect postscript files that have not been translated correctly.

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