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+<head>
+<title>UK TeX FAQ -- question label nonpdfsp</title>
+</head><body>
+<h3>Non-PDF special ignored!</h3>
+<p>This is a PDFTeX error: PDFTeX is running in PDF output
+
+mode, and it has encountered a
+<a href="FAQ-specials.html"><code>\</code><code>special</code></a> command. PDFTeX is
+able to generate its own output, and in this mode of operation has no
+need of <code>\</code><code>special</code> commands (which allow the user to pass
+information to the driver being used to generate output).
+<p>Why does this happen? LaTeX users, nowadays, hardly ever use
+<code>\</code><code>special</code> commands on their own - they employ packages to do the
+job for them. Some packages will generate <code>\</code><code>special</code> commands
+however they are invoked: <i>pstricks</i> is an example (it's very
+raison d'&ecirc;tre is to emit PostScript code in a sequence of <code>\</code><code>special</code>
+commands). <i>Pstricks</i> may be dealt with by other means (the
+<i>pdftricks</i> package offers a usable technique).
+<p>More amenable to correction, but more confusing, are packages (such as
+<i>color</i>, <i>graphics</i> and <i>hyperref</i>) that
+specify a "driver". These packages have plug-in modules that
+determine what <code>\</code><code>special</code> (or other commands) are needed to generate
+any given effect: the <code>pdftex</code> driver for such packages knows not to
+generate <code>\</code><code>special</code> commands. In most circumstances, you can let
+the system itself choose which driver you need; in this case
+everything will act properly when you switch to using PDFLaTeX. If
+you've been using <i>dvips</i> (and specifying the <code>dvips</code> driver)
+or <i>dvipdfm</i> (for which you have to specify the driver), and
+decide to try PDFLaTeX, you <em>must</em> remove the <code>dvips</code> or
+<code>dvipdfm</code> driver specification from the package options, and let the
+system recognise which driver is needed.
+<dl>
+<dt><tt><i>pdftricks.sty</i></tt><dd><a href="ftp://cam.ctan.org/tex-archive/macros/latex/contrib/pdftricks.zip">macros/latex/contrib/pdftricks</a> (<a href="ftp://cam.ctan.org/tex-archive/macros/latex/contrib/pdftricks.tar.gz">gzipped tar</a>, <a href="http://www.tex.ac.uk/tex-archive/macros/latex/contrib/pdftricks/">browse</a>)
+<dt><tt><i>pstricks.sty</i></tt><dd><a href="ftp://cam.ctan.org/tex-archive/graphics/pstricks.zip">graphics/pstricks</a> (<a href="ftp://cam.ctan.org/tex-archive/graphics/pstricks.tar.gz">gzipped tar</a>, <a href="http://www.tex.ac.uk/tex-archive/graphics/pstricks/">browse</a>)
+</dl>
+<p><p>This question on the Web: <a href="http://www.tex.ac.uk/cgi-bin/texfaq2html?label=nonpdfsp">http://www.tex.ac.uk/cgi-bin/texfaq2html?label=nonpdfsp</a>
+</body>