[pdftex] bug with included transparent graphics

Paweł Jackowski P.Jackowski at gust.org.pl
Tue Jan 1 09:21:48 CET 2008


> But here's two serious questions:
> (1) Does the fact that kpdf and xpdf (at least on Linux) render this
>     file as expected indicate that they both have bugs?

> (2) Some people (windows?  mac?) said it works correctly for them with
>     Adobe reader.  What's up with that?

I think it depends on what we consider a bug :D And on what we consider 
correct. Transparent imaging model comes with pdf 1.4, that is, with 
Acrobat 5, that afaik doesn't make an implicit color space conversion, 
does it? So does Acrobat 5 has a bug, same as GS and xpdf? I'd say no. 
I'd rather consider uncontrolable colorspace conversions in Acrobat a 
sticky feature, supposed to make the aplication a reliable preview in 
printing world (and everyone who played with printing color knows that 
no damn monitor preview is reliable).

All the best,
Pawe/l Jackowski
P.Jackowski at gust.org.pl

More information about the pdftex mailing list