Ghostscript

Ghostscript is an interpreter for the PostScript language and for PDF.

AFPL Ghostscript

 * 8.50 (2004-12-11)
 * 8.51 (2005-04-18)
 * 8.53 (2005-11-13) gs853os2.zip
 * 8.54 (2006-05-26) gs854os2.zip

GPL Ghostscript

 * 8.56 (2007-04-19) gs856os2.zip
 * 8.57 (2007-05-11)
 * 8.60 (2007-08-01) gs860os2.zip


 * 9.15 - ported by Paul Smedley
 * 9.22 (2017-10-04)

Additional Software
Ghostgum Software Pty Ltd offers GSview that allows you to view PostScript or PDF files.