Ghostscr ipt is an interpreter for Postscr ipt? and Portable Document Format (PDF) files. It is available both under the GNU GPL Affero license and for commercial licensing from Artifex. It has been under active development for over 20 years and has been ported to many different systems during this time.

Ghostscr ipt consists of a Postscr ipt interpreter layer, and a graphics library. Sometimes the Ghostscr ipt graphics library is confusingly also referred to simply as Ghostscr ipt. Even more confusingly, sometimes people say Ghostscr ipt when they really mean GhostPDL.(Ghostscr ipt is an interpreter for Postscr ipt and Portable Document Format (PDF) files. It is available both under the GNU GPL Affero license and for commercial licensing from Artifex. It has been under active development for over 20 years and has been ported to many different systems during this time.)