Bug 689209

Summary:	ps2pdf doesn't subset embedded bitmaps
Product:	Ghostscript	Reporter:	Werner Lemberg <wl>
Component:	PDF Writer	Assignee:	Ken Sharp <ken.sharp>
Status:	RESOLVED INVALID
Severity:	normal	CC:	htl10
Priority:	P4
Version:	0.00
Hardware:	PC
OS:	Linux
Customer:		Word Size:	---
Attachments:	t42-failing-subsetting.ps.bz2

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.