ps2epsi - generate conforming postscript
is a utility, based on
which takes as input a postscript
file and generates a new output file which conforms to Adobe's
or EPSI format. This is a
special form of encapsulated postscript (EPS) which adds a bitmap
version of the final displayed page (in the form of postscript
comments) to the beginning of the file. This bitmap can be used by
programs which understand EPSI (usually word processors or DTP
programs) to give a preview version of the postscript on screen. The
displayed quality is often not very good (eg. low resolution, no
colours), but the final printed version uses the real postscript,
and thus has the normal postscript quality.
Using the supplied shell script, the command is:
is the input file and
is the output EPSI file. If the output filename is omitted, it will
be generated from the input filename.
If a standard extension (.ps, .cps, .eps or .epsf) is
used, it will be replaced with the output extension .epsi.
Using the supplied batch file, the command is simply:
is the original postscript file, and
is the name of the output file.
Successful encapsulation of arbitrary postscript files cannot be
guaranteed, as there are certain restrictions in what is permitted in
a postscript file for it to be properly encapsulated.
does a little extra work to try to help encapsulation, and it automatically
calculates the bounding box (required for all encapsulated postscript
files), so, most of the time, it does a pretty good job. There are
bound to be cases, however, where the encapsulation will not work,
because of the content of the original postscript file.
DTP system is one application which understands EPSI
has been tested on a number of postscript diagrams
from a variety of sources, using Framemaker 3.0 on a Sun.
on other platforms should be able to use these files,
although I have not been able to test this.
ps2epsi.bat - MSDOS batch file
ps2epsi - Unix shell script
ps2epsi.ps - the Ghostscript program which does the work
George Cameron <email@example.com>