[NTG-pdftex] [pdftex-Bugs][4291] \pdfgentounicode conflicts with cmap+\pdffontattr

[pdftex-bugs at sarovar.org]

Bugs item #4291, was opened at 2009-06-26 22:37
Status: Open
Priority: 3
Submitted By: The Thanh Han (hanthethanh)
Assigned to: Nobody (None)
Summary: \pdfgentounicode conflicts with cmap+\pdffontattr 
Category: None
Group: None
Resolution: None


Initial Comment:
from https://www.tug.org/pipermail/tex-live/2007-October/014986.html

> I think there are unsolved issues. Now there are two methods
> for adding CMaps:
> (a) \pdffontattr, package cmap
> (b) \pdfgentounicode, glyphtounicode.tex
> 
> Both methods have its limitations, e.g. (b) only works for Type 1
> fonts.  Thus you could need both methods to cover all fonts, but the
> methods doesn't know each other, thus fonts can end up with two CMap
> tables.


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>Comment By: The Thanh Han (hanthethanh)
Date: 2010-04-16 12:25

Message:
a workaround for this problem is available in pdftex stable (1.40.11-beta). A
primitive was introduced to disable the tounicode entry generated by
\pdfgentounicode if needed. Minimal test file:

,--------,
\pdfcompresslevel=0
\input glyphtounicode
\pdfgentounicode=1
\font\f=cmb10
\pdfnobuiltintounicode\f
Hello, \f world!
\bye
`--------`


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