elow:
</p>

<dl>
<dt><b><tt>-r</tt></b><em>number</em>
<br><b><tt>-r</tt></b><em>number1</em><b><tt>x</tt></b><em>number2</em>
<dd>Sets the resolution, in dpi. If the resolution is not specified,
Ghostscript queries the IJS server to determine the preferred resolution.
When the resolution is specified, it overrides the value (if any)
preferred by the IJS server.
</dl>

<dl>
<dt><b><tt>-dDuplex</tt></b>
<dt><b><tt>-dTumble</tt></b>
<dd>These flags enable duplex (two-sided) printing. Tumble controls
the orien