Cyrprint converts postscript files generated by netscape (original pages must be in koi8 encoding). It can be used as a pass-through filter. It adds cyrillic fonts to the beginning of the file and substitutes font names in the original PS document. The substitution and addition of fonts can be controlled with styles.
GNUlpr version 1.0 is a complete printing system based on LPR, and provides support for printer-specific options, GUI tools, and autoconfiguration. The 1.1 tree is a completely re-thought printing system. Rather than creating an all-powerful spooling daemon, it constructs a pipeline of "filter" programs to perform tasks (spooling, data stream type conversion, authentication, network protocols, etc.).
The print_filter package contains a simple print filter which handles several file formats. Print_filter is designed to be as simple as possible, allowing one to easily modify or expand the source code. print_filter was originally written out of frustration with Red Hat's print filter, which is difficult to modify without using its GUI tools. print_filter is easy to work with on a console system.
TeXtrace is a collection of scripts that convert any TeX font into a Type1 .pfb outline font immediately suitable for use with dvips, pdftex, Acroread, and many other programs. The main advantage of using Type1 fonts with TeX is that Acroread renders TeX's bitmap fonts ugly on screen, but it renders outline fonts beutifully and fast.
make_cd_label is a script that helps create stickers for CDs. It is intended to be integrated with your backup scripts, but can also make stickers for audio CDs using CDDB and disc-cover. The output is an XML file that can be read into glabels and then edited or printed. It uses Memorex or Avery CD label stickers.