Computer Science
ps2epsi(1) ps2epsi(1)
NAME
ps2epsi - generate conforming postscript
SYNOPSIS
ps2epsi infile.ps [ outfile.ps ] (Unix)
ps2epsi infile.ps outfile.epi
(MS-DOS)
DESCRIPTION
ps2epsi is a utility, based on Ghostscript, which takes as
input a postscript file and generates a new output file
which conforms to Adobe's Encapsulated Postscript Inter-
change or EPSI format. This is a special form of encapsu-
lated 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.
OPTIONS
None.
UNIX USAGE
Using the supplied shell script, the command is:
ps2epsi infile.ps [ outfile.epsi ]
where infile.ps is the input file and outfile.epsi 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.
MSDOS USAGE
Using the supplied batch file, the command is simply:
ps2epsi infile.ps outfile.epi
where infile.ps is the original postscript file, and out-
file.epi is the name of the output file.
LIMITATIONS
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 prop-
erly encapsulated. ps2epsi 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 encapsula-
tion will not work, because of the content of the original
postscript file.
FRAMEMAKER
The Framemaker DTP system is one application which under-
stands EPSI files, and ps2epsi has been tested on a number
of postscript diagrams from a variety of sources, using
Framemaker 3.0 on a Sun. Framemaker on other platforms
should be able to use these files, although I have not
been able to test this.
FILES
ps2epsi.bat - MSDOS batch file
ps2epsi - Unix shell script
ps2epsi.ps - the Ghostscript program which does the work
SEE ALSO
gs(1)
AUTHOR
George Cameron <george@bio-medical-physics.aberdeen.ac.uk>
September 1, 1997 1
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