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<h3 class="section" id="Paper-Format-1">2.5 Paper Format</h3>
<a class="index-entry-id" id="index-paper-format"></a>
<a class="index-entry-id" id="index-format_002c-paper"></a>
<a class="index-entry-id" id="index-paper-size"></a>
<a class="index-entry-id" id="index-size_002c-paper"></a>
<a class="index-entry-id" id="index-landscape-page-orientation"></a>
<a class="index-entry-id" id="index-orientation_002c-landscape"></a>
<a class="index-entry-id" id="index-page-orientation_002c-landscape"></a>

<p>In <code class="code">groff</code>, the page dimensions for the formatter GNU <code class="code">troff</code>
and for output devices are handled separately.  See <a class="xref" href="Page-Layout.html">Page Layout</a>, for
vertical manipulation of the page size, and See <a class="xref" href="Line-Layout.html">Line Layout</a>, for
horizontal changes.
<a class="index-entry-id" id="index-papersize_002etmac"></a>
<a class="index-entry-id" id="index-troffrc-1"></a>
The <samp class="file">papersize</samp> macro package, normally loaded by <samp class="file">troffrc</samp> at
startup, provides an interface for configuring page dimensions by
convenient names, like &lsquo;<samp class="samp">letter</samp>&rsquo; or &lsquo;<samp class="samp">a4</samp>&rsquo;; see
<cite class="cite">groff_tmac<span class="r">(5)</span></cite>.  The default used by the formatter depends on
its build configuration, but is usually one of the foregoing, as
geographically appropriate.
</p>
<p>It is up to each macro package to respect the page dimensions configured
in this way.
</p>
<p>For each output device, the size of the output medium can be set in its
<samp class="file">DESC</samp> file.  Most output drivers also recognize a command-line
option <samp class="option">-p</samp> to override the default dimensions and an option
<samp class="option">-l</samp> to use landscape orientation.  See <a class="xref" href="DESC-File-Format.html"><samp class="file">DESC</samp> File Format</a>, for
a description of the <code class="code">papersize</code> keyword, which takes an argument
of the same form as <samp class="option">-p</samp>.  The output driver&rsquo;s man page, such as
<cite class="cite">grops<span class="r">(1)</span></cite>, may also be helpful.
</p>
<p><code class="code">groff</code> uses the command-line option <samp class="option">-P</samp> to pass options to
postprocessors; for example, use the following for PostScript output on
A4 paper in landscape orientation.
</p>
<div class="example">
<div class="group"><pre class="example-preformatted">groff -Tps -dpaper=a4l -P-pa4 -P-l -ms foo.ms &gt; foo.ps
</pre></div></div>



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