Bug 689209 - ps2pdf doesn't subset embedded bitmaps
Summary: ps2pdf doesn't subset embedded bitmaps
Status: RESOLVED INVALID
Alias: None
Product: Ghostscript
Classification: Unclassified
Component: PDF Writer (show other bugs)
Version: 0.00
Hardware: PC Linux
: P4 normal
Assignee: Ken Sharp
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2007-05-06 04:49 UTC by Werner Lemberg
Modified: 2019-02-10 11:59 UTC (History)
1 user (show)

See Also:
Customer:
Word Size: ---

Attachments
t42-failing-subsetting.ps.bz2 (4.52 MB, application/octet-stream)
2007-05-06 05:17 UTC, Werner Lemberg 		Details
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Description Werner Lemberg 2007-05-06 04:49:38 UTC 
This is with gs 8.55.

The attached file displays a single Japanese glyph; however, the
resulting PDF file is a few MByte large.
Comment 1 Werner Lemberg 2007-05-06 05:17:45 UTC 
Created attachment 2934 [details]
t42-failing-subsetting.ps.bz2
Comment 2 leonardo 2007-08-29 20:19:30 UTC 
Passing to Ken since he handles pdfwrite from now.
Comment 3 Werner Lemberg 2008-04-08 13:55:29 UTC 
This still doesn't work correctly with gs 8.61 -- the embedded bitmaps are still
not subsetted (or removed).
Comment 4 Ken Sharp 2009-03-23 07:01:40 UTC 
Revision 9580, patch here:

http://ghostscript.com/pipermail/gs-cvs/2009-March/009154.html

reduces the problem by eliding certain TT tables from the output. Resolving the
problem completely will need to wait until a more general overhaul of our
TrueType handling allows us to subset TrueType fonts.
Comment 5 Michel Villeneuve 2009-08-23 03:24:56 UTC 
This still doesn't work correctly with gs 8.70. the embedded bitmaps are still
not subsetted
Comment 6 Ken Sharp 2009-08-23 03:56:20 UTC 
Returning to 'later'. Although the reduction in the tables reduces the problem
there still hasn't been a rewrite of TrueType font embedding, so this still has
not been addressed. It won't be until the whole issue of TT font embedding is
revisited.
Comment 7 Ken Sharp 2019-02-10 11:59:39 UTC 
I've referenced this bug from the still open one for rewriting the TrueType embedding code. So I'm closing this one completely now.