[XeTeX] XeTeX, XeTeXpicfile, and transparency

Tobias Schoel liesdiedatei at googlemail.com
Fri Mar 16 18:23:32 CET 2012

On 16.03.2012 18:41, Zdenek Wagner wrote:
>>  snip
> There are two separate problems:
> 1. Prepare an image with transparency. You must use a format supporting it
Can probably be done with ImageMagick via console and thus should be 
available via \write18 (or that stuff). See: 
> 2. Include the picture an a way preserving transparency. When doing
> this you must ensure that you create a PDF with a minor version
> supporting transparency. If the version does not support transparency,
> then it is an expected behaviour that xdvipdfmx will remove it.
> Remember that transparency is explicitely prohibited in PDF/X and
> PDF/A. I do not know the first version of PDF supporting transparency
> Default of xdvipdfmx is 1.4 but can be changed by -V.

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