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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.3//EN">
<html><head><title>Gemtopnm User Manual</title></head>
<body>
<h1>gemtopnm</h1>
Updated: 28 March 2025
<br>
<a href="#index">Table Of Contents</a>
<h2>NAME</h2>
gemtopnm - convert a GEM .img file into a PNM image
<h2 id="synopsis">SYNOPSIS</h2>
<b>gemtopnm</b>
[<b>-debug</b>]
[<i>gemfile</i>]
<h2 id="description">DESCRIPTION</h2>
<p>This program is part of <a href="index.html">Netpbm</a>.
<p><b>gemtopnm</b> reads a GEM .img file, either the one plane
(black/white) or four plane (16 color) varieety, as input and produces
a PBM or PPM file as output, depending on whether the input is one or
four plane.
<p>The input file is <i>gemfile</i> if you specify that argument, or
Standard Input otherwise. Output is to Standard Output.
<h2 id="options">OPTIONS</h2>
<p>In addition to the options common to all programs based on libnetpbm
(most notably <b>-quiet</b>, see <a href="index.html#commonoptions">
Common Options</a>), <b>gemtopnm</b> recognizes the following
command line option:
<dl compact>
<dt><b>-debug</b>
<dd>Produce output describing the contents of the .img file.
</dl>
<h2 id="seealso">SEE ALSO</h2>
<b><a href="pbmtogem.html">pbmtogem</a></b>,
<b><a href="pnm.html">pnm</a></b>
<h2 id="author">AUTHOR</h2>
<p>Copyright (C) 1988 Diomidis D. Spinellis (<a
href="mailto:dds@cc.ic.ac.uk">dds@cc.ic.ac.uk</a>).
<hr>
<h2 id="index">Table Of Contents</h2>
<ul>
<li><a href="#synopsis">SYNOPSIS</a>
<li><a href="#description">DESCRIPTION</a>
<li><a href="#options">OPTIONS</a>
<li><a href="#seealso">SEE ALSO</a>
<li><a href="#author">AUTHOR</a>
</ul>
</body>
</html>
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