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<title>UK TeX FAQ -- question label driver</title>
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<h3>What is a driver?</h3>
<p>A driver is a program that takes as input a DVI file
(<a href="FAQ-dvi.html">DVI files</a>) and
(usually) produces a file that can be sent to a typographic
output device, called a printer for short.
<p>A driver will usually be specific to a particular printer,
although any PostScript printer ought to be able to print
the output from a PostScript driver.
<p>As well as the DVI file, the driver needs font information.
Font information may be held as bitmaps or as outlines, or simply as a
set of pointers into the fonts that the printer itself 'has'.
Each driver will expect the font information in
a particular form. For more information on the forms of fonts,
see <a href="FAQ-pk.html"><code>pk</code> files</a>,
<a href="FAQ-tfm.html"><code>tfm</code> files</a>,
<a href="FAQ-virtualfonts.html">virtual fonts</a>
and <a href="FAQ-usepsfont.html">Using PostScript fonts with TeX</a>.
<p><p><p>This question on the Web: <a href="http://www.tex.ac.uk/cgi-bin/texfaq2html?label=driver">http://www.tex.ac.uk/cgi-bin/texfaq2html?label=driver</a>
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