[gs-bugs] [Bug 690714] Missing Characters after PDF Write

[bugs.ghostscript.com-bugzilla-daemon at ghostscript.com]

http://bugs.ghostscript.com/show_bug.cgi?id=690714

ken.sharp at artifex.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|ken.sharp at artifex.com       |alex.cherepanov at artifex.com



------- Additional Comments From ken.sharp at artifex.com  2009-10-26 08:03 -------
This does not appear to be a problem with pdfwrite. When run through GS to the
display device there are a number of zlib errors (which are ignored) and a
number of 'substitutuing .notdef for glyph ' errors. (The glyph errors are not
present when the device is pdfwrite)

I'm unsure as to whether the problem is the decompression of streams (zlib) or
somethign we don't like about the font (Trebuchet, apparently). However the
pdfwrite output file contains the usual hollow square for .notdef where the
glyphs are 'missing'. The effect does not appear to be random, its the same
glyphs missing every time.

Its likely this is simply a bad PDF file, I notice the PDF Producer field is
empty, never a good sign when the software is embarrassed enough to remain
anonymous. The fact that Acrobat reads it and doesn't complain doesn't mean the
file is valid, Acrobat silently fixes all kinds of broken files.

I'm reassigning this to Alex to see if the problem is zlib, the PDF interpreter
or the font.



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