Adobe non free code in type 1 fonts

The problem

Font hinting use some proprietary code from adobe. The non free code is described here: http://partners.adobe.com/public/developer/opentype/index_ps_code3.html

How can I check

Lintian will help see #694328

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

Rewritting is difficult: * the adobe code is part of the language * some printers search and replace the adobe code by theirs own routine * the adobe code is buggy (leak memory) and postscript interpreter patch it at run time