PSEPSI - add an EPSI formatted preview bitmap to an EPS file

psepsi <epsfile >epsifile

Note:
This application requires
(1) that gs (the Ghostscript interpreter) exist, and
(2) that the input EPS file contain a BoundingBox and EndComments.
Ghostscript is used to build the preview bitmap, which is then
merged with the input EPS file to make the output EPSI file.