1. GNU a2ps 'Anything to PostScript' converter and pretty-printer a2ps converts files into PostScript for printing or viewing. It uses a nice default format, usually two pages on each physical page, borders surrounding pages, headers with useful information (page number, printing date, file name or supplied header), line numbering, symbol substitution as well as pretty printing for a wide range of programming languages. Historically, a2ps started as a text to PostScript converter, but thanks to powerful delegations it is able to let you use it for any kind of files, ie it can also digest manual pages, dvi files, texinfo, .... Among the other most noticeable features of a2ps are: - various encodings (all the Latins and others), - various fonts (automatic font down loading), - various medias, - various printer interfaces, - various output styles, - various programming languages, - various helping applications, - and various spoken languages. From Debian 3.0r0 APT

2. The a2ps filter converts text and other types of files to PostScript format. A2ps has pretty-printing capabilities and includes support for a wide number of programming languages, encodings (ISO Latins, Cyrillic, etc.), and media. From Redhat 8.0 RPM