[gs-bugs] [Bug 691443] Difference with icc_work output

bugzilla-daemon at ghostscript.com bugzilla-daemon at ghostscript.com
Wed Jul 7 13:52:15 UTC 2010


http://bugs.ghostscript.com/show_bug.cgi?id=691443

--- Comment #1 from Michael Vrhel <michael.vrhel at artifex.com> 2010-07-07 13:52:11 UTC ---
There is something odd about this PDF file.  

It is a signed document that cannot be edited (at least in AR) and when I view
the signed version with AR I get what GS provides as output.  i.e. the
overlapping circles that do not interact like subtractive inks. Viewing the
unsigned version with AR, the overlapping CM and Y do interact.  Also, there is
a difference in the spot orange and black 2D overprint grid between the signed
and unsigned version.  

Pushing out to PDF write (so that I could edit easily with AR) we get the
overlapping circles that do not interact and no signature information.  Need to
understand a bit more about why AR shows differences in signed and unsigned
viewing and what exactly we should be showing.  This may also be a PDF
interpreter issue. 

It looks like there is a CalRGB or CalGray color space that is also getting
improperly converted into an ICC profile, which I will investigate.

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