gsview -- PostScript and PDF previewer<hr>
<a href="http://www.cs.wisc.edu/~ghost/gsview/">http://www.cs.wisc.edu/~ghost/gsview/</a><hr>
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.
</listing>