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Eric Marsden | 5 Apr 2010 14:13
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PATCH: PDF transparency support

Hi,

The attached patch adds support for PDF transparency, using the existing
gstate mechanism. It allows you to specify transparency for stroke and
fill operations seperately. The "blend mode" can also be specified. The
patch includes an example.

Note that viewer support for different blend modes is variable (works OK
in Adobe Reader, Foxit Reader, xpdf but not in evince/poppler).
Attachment (pdf-transparency.diff): text/x-diff, 4043 bytes

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-- 
Eric Marsden

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Marc Battyani | 20 Apr 2010 15:37

Re: PATCH: PDF transparency support

Thanks Eric! :)

I will look at that and put it in the repository.

Marc

On 05-04-10 8:13 AM, Eric Marsden wrote:
Hi, The attached patch adds support for PDF transparency, using the existing gstate mechanism. It allows you to specify transparency for stroke and fill operations seperately. The "blend mode" can also be specified. The patch includes an example. Note that viewer support for different blend modes is variable (works OK in Adobe Reader, Foxit Reader, xpdf but not in evince/poppler). _______________________________________________ cl-pdf-devel site list cl-pdf-devel-F1HGIaG5STRyXAeb93iumQ@public.gmane.org http://common-lisp.net/mailman/listinfo/cl-pdf-devel 
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Dmitriy Ivanov | 17 Oct 2010 12:06
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Transparency support and image-file-parse-error condition

Hello folks,

I have finally merged the patch proposed by Eric Marsden quite a while ago
into the repository.

I have also introduced the image-file-parse-error condition class for
handling error uniformly.
Please update carefully.
--
Sincerely,
Dmitriy Ivanov
lisp.ystok.ru

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