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<H1>psidtopgm</H1>
Updated: 02 August 89
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<A HREF="#index">Table Of Contents</A>
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<H2>NAME</H2>
psidtopgm - convert PostScript "image" data to a PGM image
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<H2>SYNOPSIS</H2>
<B>psidtopgm</B> <I>width</i> <i>height</i> <i>bits/sample</I> [<I>imagedata</I>]
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<H2>DESCRIPTION</H2>
<p>This program is part of <a href="index.html">Netpbm</a>.
<p><b>psidtopgm</b> reads the "image" data from a PostScript
file as input and produces a PGM image as output.
<P>This program is obsoleted by <B>pstopnm</B>.
What follows was written before <B>pstopnm </B> existed.
<P>This is a very simple and limited program, and is here only because
so many people have asked for it. To use it you have to
<em>manually</em> extract the readhexstring data portion from your
PostScript file, and then give the width, height, and bits/sample on
the command line. Before you attempt this, you should <em>at
least</em> read the description of the "image" operator in
the PostScript Language Reference Manual.
<P>It would probably not be too hard to write a script that uses this
filter to read a specific variety of PostScript image, but the
variation is too great to make a general-purpose reader. Unless, of
course, you want to write a full-fledged PostScript interpreter...
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<H2>SEE ALSO</H2>
<A HREF="pnmtops.html">pnmtops</A>,
<A HREF="pgm.html">pgm</A>
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<H2>AUTHOR</H2>
Copyright (C) 1989 by Jef Poskanzer.
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<H2>Table Of Contents</H2>
<UL>
<LI><A HREF="#lbAB">NAME</A>
<LI><A HREF="#lbAC">SYNOPSIS</A>
<LI><A HREF="#lbAD">DESCRIPTION</A>
<LI><A HREF="#lbAE">SEE ALSO</A>
<LI><A HREF="#lbAF">AUTHOR</A>
</UL>
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