Differences between revisions 8 and 9
Revision 8 as of 2012-12-16 19:07:52
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Revision 9 as of 2013-01-11 17:44:10
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Comment: Improve this page by adding lintian bug and more code example from adobe
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http://partners.adobe.com/public/developer/opentype/index_ps_code3.html  * [[http://partners.adobe.com/public/developer/opentype/index_ps_code3.html|adobe code fragment]]
 * Black book page 97 available [[http://partners.adobe.com/public/developer/en/font/T1_SPEC.PDF|here]]
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Lintian will help, see [[http://bugs.debian.org/694328|#694328]]. Lintian help see report [[http://lintian.debian.org/tags/font-adobe-copyrighted-fragment.html|here]]
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 * some printers search and replace the adobe code by their own routine
 * the adobe code is buggy (leaks memory) and postscript interpreters patch it at run time
 * some printers search and replace the adobe code by their own routine. Rewritting this code could crash your printer.
 * the adobe code is buggy (leaks memory) and postscript interpreters patch it at run time. Modifying it could change the postscript interpreter behavior.

Adobe non free code in type 1 fonts

The problem

Font hinting uses some proprietary code from adobe. The non free code is described here:

How can I check

Lintian help see report here

Install the t1utils package and run the following command on the pfb file:

t1disasm file.pfb

Check if you see the non free code.

How to solve

Rewriting is difficult:

  • the adobe code is part of the language
  • some printers search and replace the adobe code by their own routine. Rewritting this code could crash your printer.
  • the adobe code is buggy (leaks memory) and postscript interpreters patch it at run time. Modifying it could change the postscript interpreter behavior.

Adobe seems willing to relicense see mail here.

I found this bug

Please report this bug by adding to the bug header the following usertag:

user: debian-qa@lists.debian.org
usertags: adobe-font-license
severity: serious

See usertags documentation for more information about usertags.

List of this kind of bug

Please see the list