GSview is a graphical interface for Ghostscript. Ghostscript is an interpreter for the PostScript page description language used by laser printers. For documents following the Adobe PostScript Document Structuring Conventions, GSview allows selected pages to be viewed or printed. GSview requires Ghostscript. GSview is available for Windows, OS/2 and Linux.
GSview was written by
Russell Lang at Ghostgum Software Pty Ltd.
Ghostscript was originally written by Aladdin Enterprises and is now maintained by Artifex Software, Inc.
See Obtaining GSview 5.0 and Obtaining GPL Ghostscript.