Bug#664966: Add an option to disable T3CCITT encoding
There is no corresponding Ghostscript upstream bug, bug the following
Ubuntu bug report:
https://bugs.launchpad.net/ubuntu/+source/cups-filters/+bug/955553
It is commit d6f83dfa81a.
Till
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commit d6f83dfa81a2073c3d1f67a30aee7e8407e4685a
Author: Ken Sharp <ken.sharp@artifex.com>
Date: Mon Mar 19 10:06:10 2012 +0000
ps2write - work-around bugs in Brother printer CCITTFaxDecode filter
Raised on irc by Till Kamppeter, see Ubuntu bug :
https://bugs.launchpad.net/ubuntu/+source/cups/+bug/955553
After much work by Chris Liddell and Bruce Stough it transpires that at
least some Brother printers have a bug in their CCITTFaxDecode filter,
especially with small amounts of data.
Since the ps2write otuput for bitmapped glyhs (which is required
when the
input is a CIDFont) always uses the CCITTFax filter, this led to
corrupted
output from the Brother (Note this is a bug in the *printer* not
ps2write)
This patch adds a new command line parameter 'NoT3CCITT' which disables
compression of bitmapped glyphs. It should only be used with
printers which
have a problem with CCITTFax data, and in that case should also be
used with
the EncodeMonoImages switch to disable compression of monochrome
images. Eg:
-dNoT3CCITT -dEncodeMonoImages=false
No differences expected as these are not tested by our regression tests
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