“The Ghostscript program combines an innovative approach to the
problems involved with graphical printing, as well as providing a
model that distributes the software in both open source and
proprietary channels.”
“At its simplest, Ghostscript can be described as a free
software implementation of Adobe’s PostScript page-description
language. It takes documents rendered using PostScript and outputs
them in one of many different formats. Ghostscript talks the
language of just about every printer in common use, including all
popular lasers and inkjets, as well as software fax systems and X
Windows displays.”