ifhp is a highly versatile print filter for BSD based print spoolers.
It can be configured to handle text,  PostScript, PJL, PCL, and
raster printers, supports conversion from one format to another,
and can be used as a stand-alone print utility.  It is the primary
supported print filter for the LPRng print spooler.

WWW: http://www.lprng.com/
FTP: ftp://ftp.lprng.com/