How can I create PDF with spot color?

"AAA" <always_rick-/[email protected]> Mon, 02 Jul 2007 06:45:10 -0000

Newsgroups	gmane.comp.lang.perl.modules.pdfapi2
Message-ID	<[email protected]>

Hi all,

I am confused. How can I create PDF with spot colors?

In API2 I only see the following sample code.
---------------------------------------------------------------------
1    $cy = $pdf->colorspace_separation('Cyan',    '%f000');
2    $ma = $pdf->colorspace_separation('Magenta', '%0f00');
3    $ye = $pdf->colorspace_separation('Yellow',  '%00f0');
4    $bk = $pdf->colorspace_separation('Black',   '%000f');
5    $pms023 = $pdf->colorspace_separation('PANTONE 032CV', '%0ff0');
6    $dncs = $pdf->colorspace_devicen( [ $cy,$ma,$ye,$bk,$pms023 ] );
---------------------------------------------------------------------

My understanding is line 5 is make a separated colorspace 
for 'PANTONE 032CV', which is red ('%0ff0') in CMYK.

What to do next? I did $txt->fillcolor($pms023, 100); but didn't 
work. 

thanks a lot.