An Open Source utility that allows the conversion of any file to a PostScript filter
Initially designed as a “Text to PostScript” conversion utility, GNU a2ps features pretty printing functionality, support for any file types (PostScript, compressed, Texinfo, etc.) if the necessary tools are installed.
Detailed documentation, updates, flashes, FAQ, mailing lists, etc. for GNU a2ps is available at http://www.inf.enst.fr/~demaille/a2ps