 As it takes the form of a language interpreter, Ghostscript can also be used as a general purpose programming environment.Ghostscript has been ported to many operating systems, including Unix-like systems, classic Mac OS, OpenVMS, Microsoft Windows, Plan 9, MS-DOS, FreeDOS, OS/2, Atari TOS and AmigaOS.Ghostscript was originally written by L. Peter Deutsch for the GNU Project, and released under the GNU General Public License in 1986.