Ghostview is an X11 user interface for Ghostscript, allowing you to view and navigate PostScript files. There are several derivatives of Ghostview that are now in common use. GV is a version of Ghostview with an improved user interface and the ability to display PDF files.
On LPL UNIX machines, you can run gv version 1.5 by typing this command at the UNIX shell prompt:
Click here for more information: GV Home Page