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<title>FAX2PS</title>
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<h1 align=center>FAX2PS</h1>
<a href="#NAME">NAME</a><br>
<a href="#SYNOPSIS">SYNOPSIS</a><br>
<a href="#DESCRIPTION">DESCRIPTION</a><br>
<a href="#OPTIONS">OPTIONS</a><br>
<a href="#DIAGNOSTICS">DIAGNOSTICS</a><br>
<a href="#NOTES">NOTES</a><br>
<a href="#BUGS">BUGS</a><br>
<a href="#SEE ALSO">SEE ALSO</a><br>
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<a name="NAME"></a>
<h2>NAME</h2>
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<p>fax2ps − convert a <small>TIFF</small> facsimile to
compressed PostScript™</p>
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<a name="SYNOPSIS"></a>
<h2>SYNOPSIS</h2>
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<p><b>fax2ps</b> [ <i>options</i> ] [ <i>file ...</i> ]</p>
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<a name="DESCRIPTION"></a>
<h2>DESCRIPTION</h2>
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<p><i>fax2ps</i> reads one or more <small>TIFF</small>
facsimile image files and prints a compressed form of
PostScript on the standard output that is suitable for
printing.</p>
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<p>By default, each page is scaled to reflect the image
dimensions and resolutions stored in the file. The
<b>−x</b> and <b>−y</b> options can be used to
specify the horizontal and vertical image resolutions
(lines/inch), respectively. If the <b>−S</b> option is
specified, each page is scaled to fill an output page. The
default output page is 8.5 by 11 inches. Alternate page
dimensions can be specified in inches with the
<b>−W</b> and <b>−H</b> options.</p>
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<p>By default <i>fax2ps</i> generates PostScript for all
pages in the file. The <b>−p</b> option can be used to
select one or more pages from a multi-page document.</p>
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<p><i>fax2ps</i> generates a compressed form of PostScript
that is optimized for sending pages of text to a PostScript
printer attached to a host through a low-speed link (such as
a serial line). Each output page is filled with white and
then only the black areas are drawn. The PostScript
specification of the black drawing operations is optimized
by using a special font that encodes the move-draw
operations required to fill the black regions on the page.
This compression scheme typically results in a substantially
reduced PostScript description, relative to the
straightforward imaging of the page with a PostScript
<i>image</i> operator. This algorithm can, however, be
ineffective for continuous-tone and white-on-black images.
For these images, it sometimes is more efficient to send the
raster bitmap image directly; see <b>tiff2ps</b>(1).</p>
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<a name="OPTIONS"></a>
<h2>OPTIONS</h2>
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<p><b>−p</b> <i>number</i></p>
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<p>Print only the indicated page. Multiple pages may be
printed by specifying this option more than once.</p>
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<td width="0%">
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<p><b>−x</b> <i>resolution</i></p></td>
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<p>Use <i>resolution</i> as the horizontal resolution, in
dots/inch, of the image data. By default this value is taken
from the file.</p>
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<p><b>−y</b> <i>resolution</i></p></td>
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<p>Use <i>resolution</i> as the vertical resolution, in
lines/inch, of the image data. By default this value is
taken from the file.</p>
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<p><b>−S</b></p>
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<td width="76%">
<p>Scale each page of image data to fill the output page
dimensions. By default images are presented according to the
dimension information recorded in the <small>TIFF</small>
file.</p>
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<td width="0%">
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<td width="10%"></td>
<td width="12%">
<p><b>−W</b> <i>width</i></p>
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<p>Use <i>width</i> as the width, in inches, of the output
page.</p>
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<td width="0%">
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<tr valign="top" align="left">
<td width="10%"></td>
<td width="12%">
<p><b>−H</b> <i>height</i></p>
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<p>Use <i>height</i> as the height, in inches, of the
output page.</p>
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<td width="0%">
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<a name="DIAGNOSTICS"></a>
<h2>DIAGNOSTICS</h2>
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<p>Some messages about malformed <small>TIFF</small> images
come from the <small>TIFF</small> library.</p>
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<p>Various messages about badly formatted facsimile images
may be generated due to transmission errors in received
facsimile. <i>fax2ps</i> attempts to recover from such data
errors by resynchronizing decoding at the end of the current
scanline. This can result in long horizontal black lines in
the resultant PostScript image.</p>
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<a name="NOTES"></a>
<h2>NOTES</h2>
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<p>If the destination printer supports PostScript Level II
then it is always faster to just send the encoded bitmap
generated by the <b>tiff2ps</b>(1) program.</p>
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<a name="BUGS"></a>
<h2>BUGS</h2>
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<p><i>fax2ps</i> should probably figure out when it is doing
a poor job of compressing the output and just generate
PostScript to image the bitmap raster instead.</p>
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<a name="SEE ALSO"></a>
<h2>SEE ALSO</h2>
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<p><b>tiff2ps</b>(1), <b>libtiff</b>(3)</p>
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<p>Libtiff library home page:
<b>http://www.remotesensing.org/libtiff/</b></p>
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