starts by using a DeviceCMYK process color model. The
DeviceCMYK process color model allows the <tt>xcfcmyk</tt> device to also
support spot colors. Spot colors need to be specified prior to opening the
first page.
This can be done via adding the
following to the command line: <b><tt>-c "<< /SeparationColorNames [ /Name1 /Name2 ]
>> setpagedevice" -f</tt></b>.

<p>
After a page is complete, the <tt>xcfcmyk</tt> converts the CMYK image data into
RGB for storing in the XCF output file.  The XCF format does no