[pdftex] PNG transparency problem

Geoff Russell geoff at austrics.com.au
Sun Jul 24 13:10:08 CEST 2005

Thanks Hartmut,

my pdftex gives a version of:

       pdfTeX (Web2C 7.5.2) 3.141592-1.11a

how does you "pdftex-1.30.0" relate?
i.e., have I got 1.11 and need 1.30.0 ?

Geoff Russell

On Sun, 24 Jul 2005, Hartmut Henkel wrote:

> On Sun, 24 Jul 2005, Geoff Russell wrote:
> > The following plain TeX code includes the attached PNG graphic
> > containing transparency. But the transparency is being lost somewhere.
> PNG transparency (alpha channel) is supported from pdftex-1.30.0 on
> (coming soon; available test/rc versions do this already). Needs PDF-1.4
> (or higher) output mode setting (1.4 is default anyway). It seems that
> xpdf-3.00 doesn't show alpha, but Acrobat 7.0 does.
> Regards, Hartmut

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