253 lines
7.6 KiB
HTML
253 lines
7.6 KiB
HTML
<!-- Creator : groff version 1.18.1 -->
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<!-- CreationDate: Sat Feb 24 18:37:18 2007 -->
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<html>
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<head>
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<meta name="generator" content="groff -Thtml, see www.gnu.org">
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<meta name="Content-Style" content="text/css">
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<title>FAX2PS</title>
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</head>
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<body>
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<h1 align=center>FAX2PS</h1>
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<a href="#NAME">NAME</a><br>
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<a href="#SYNOPSIS">SYNOPSIS</a><br>
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<a href="#DESCRIPTION">DESCRIPTION</a><br>
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<a href="#OPTIONS">OPTIONS</a><br>
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<a href="#DIAGNOSTICS">DIAGNOSTICS</a><br>
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<a href="#NOTES">NOTES</a><br>
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<a href="#BUGS">BUGS</a><br>
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<a href="#SEE ALSO">SEE ALSO</a><br>
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<hr>
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<a name="NAME"></a>
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<h2>NAME</h2>
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<td width="8%"></td>
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<td width="91%">
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<p>fax2ps − convert a <small>TIFF</small> facsimile to
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compressed PostScript™</p>
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</td>
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</table>
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<a name="SYNOPSIS"></a>
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<h2>SYNOPSIS</h2>
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<td width="8%"></td>
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<td width="91%">
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<p><b>fax2ps</b> [ <i>options</i> ] [ <i>file ...</i> ]</p>
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</td>
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</table>
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<a name="DESCRIPTION"></a>
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<h2>DESCRIPTION</h2>
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cols="2" cellspacing="0" cellpadding="0">
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<td width="8%"></td>
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<td width="91%">
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<p><i>fax2ps</i> reads one or more <small>TIFF</small>
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facsimile image files and prints a compressed form of
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PostScript on the standard output that is suitable for
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printing.</p>
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<p>By default, each page is scaled to reflect the image
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dimensions and resolutions stored in the file. The
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<b>−x</b> and <b>−y</b> options can be used to
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specify the horizontal and vertical image resolutions
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(lines/inch), respectively. If the <b>−S</b> option is
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specified, each page is scaled to fill an output page. The
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default output page is 8.5 by 11 inches. Alternate page
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dimensions can be specified in inches with the
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<b>−W</b> and <b>−H</b> options.</p>
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<p>By default <i>fax2ps</i> generates PostScript for all
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pages in the file. The <b>−p</b> option can be used to
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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
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that is optimized for sending pages of text to a PostScript
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printer attached to a host through a low-speed link (such as
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a serial line). Each output page is filled with white and
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then only the black areas are drawn. The PostScript
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specification of the black drawing operations is optimized
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by using a special font that encodes the move-draw
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operations required to fill the black regions on the page.
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This compression scheme typically results in a substantially
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reduced PostScript description, relative to the
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straightforward imaging of the page with a PostScript
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<i>image</i> operator. This algorithm can, however, be
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ineffective for continuous-tone and white-on-black images.
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For these images, it sometimes is more efficient to send the
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raster bitmap image directly; see <b>tiff2ps</b>(1).</p>
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</td>
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</table>
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<a name="OPTIONS"></a>
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<h2>OPTIONS</h2>
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<!-- TABS -->
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<table width="100%" border=0 rules="none" frame="void"
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cols="4" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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<td width="11%"></td>
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<td width="11%">
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<p><b>−p</b> <i>number</i></p>
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</td>
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<td width="76%">
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<p>Print only the indicated page. Multiple pages may be
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printed by specifying this option more than once.</p>
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</td>
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<td width="0%">
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</td>
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</table>
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<table width="100%" border=0 rules="none" frame="void"
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cols="2" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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<td width="8%"></td>
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<td width="91%">
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<p><b>−x</b> <i>resolution</i></p></td>
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</table>
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<table width="100%" border=0 rules="none" frame="void"
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cols="2" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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<td width="23%"></td>
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<td width="76%">
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<p>Use <i>resolution</i> as the horizontal resolution, in
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dots/inch, of the image data. By default this value is taken
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from the file.</p>
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</td>
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</table>
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<table width="100%" border=0 rules="none" frame="void"
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cols="2" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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<td width="8%"></td>
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<td width="91%">
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<p><b>−y</b> <i>resolution</i></p></td>
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</table>
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<table width="100%" border=0 rules="none" frame="void"
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cols="2" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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<td width="23%"></td>
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<td width="76%">
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<p>Use <i>resolution</i> as the vertical resolution, in
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lines/inch, of the image data. By default this value is
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taken from the file.</p>
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</td>
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</table>
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<!-- TABS -->
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<table width="100%" border=0 rules="none" frame="void"
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cols="4" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="12%">
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<p><b>−S</b></p>
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</td>
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<td width="76%">
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<p>Scale each page of image data to fill the output page
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dimensions. By default images are presented according to the
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dimension information recorded in the <small>TIFF</small>
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file.</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="12%">
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<p><b>−W</b> <i>width</i></p>
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</td>
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<td width="76%">
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<p>Use <i>width</i> as the width, in inches, of the output
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page.</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="12%">
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<p><b>−H</b> <i>height</i></p>
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</td>
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<td width="76%">
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<p>Use <i>height</i> as the height, in inches, of the
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output page.</p>
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</td>
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<td width="0%">
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</td>
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</table>
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<a name="DIAGNOSTICS"></a>
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<h2>DIAGNOSTICS</h2>
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<table width="100%" border=0 rules="none" frame="void"
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cols="2" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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<td width="8%"></td>
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<td width="91%">
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<p>Some messages about malformed <small>TIFF</small> images
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come from the <small>TIFF</small> library.</p>
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<p>Various messages about badly formatted facsimile images
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may be generated due to transmission errors in received
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facsimile. <i>fax2ps</i> attempts to recover from such data
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errors by resynchronizing decoding at the end of the current
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scanline. This can result in long horizontal black lines in
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the resultant PostScript image.</p>
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</td>
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</table>
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<a name="NOTES"></a>
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<h2>NOTES</h2>
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<table width="100%" border=0 rules="none" frame="void"
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cols="2" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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<td width="8%"></td>
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<td width="91%">
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<p>If the destination printer supports PostScript Level II
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then it is always faster to just send the encoded bitmap
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generated by the <b>tiff2ps</b>(1) program.</p>
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</td>
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</table>
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<a name="BUGS"></a>
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<h2>BUGS</h2>
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<!-- INDENTATION -->
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<table width="100%" border=0 rules="none" frame="void"
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cols="2" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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<td width="8%"></td>
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<td width="91%">
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<p><i>fax2ps</i> should probably figure out when it is doing
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a poor job of compressing the output and just generate
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PostScript to image the bitmap raster instead.</p>
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</td>
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</table>
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<a name="SEE ALSO"></a>
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<h2>SEE ALSO</h2>
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<!-- INDENTATION -->
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<table width="100%" border=0 rules="none" frame="void"
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cols="2" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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<td width="8%"></td>
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<td width="91%">
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<p><b>tiff2ps</b>(1), <b>libtiff</b>(3)</p>
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<p>Libtiff library home page:
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<b>http://www.simplesystems.org/libtiff/</b></p>
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</td>
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</table>
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<hr>
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</body>
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</html>
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