El Dilluns, 5 d'agost de 2013, a les 10:23:20, Thomas Freitag va escriure: > Thanks, Leonard! > > That clearifies it, and also makes the remarks of Olaf clearer: the GWG > patches use the "ri" stream operator which I missed just looking into > the PDF objects, and of course the tests set it to "Perceptual", but > this was only implemented in the patch of Albert for bug 34053 (sorry, > Albert, I should have taken a deeper look into that patch first). > I think, I'm now able to create a correct patch to render the GWG files > correctly, and I'll have also a look into the altona file. > > @Albert: Should we now continue the discussion now on bug 34053? I > think, I've now all informations necessary, and what You're missing in > Your patch at that bug is the usage of OutputIntents and probably that > You'll see only differences if You render the altona file in CMYK mode!
Keeping the discussion in the bug works for me. Cheers, Albert > > Cheers, > Thomas > > Am 04.08.2013 15:00, schrieb Leonard Rosenthol: > > On 8/4/13 8:35 AM, "Thomas Freitag" <[email protected]> wrote: > >> 1. The PDF spec says that the default rendering intent is > >> RelativeColormetric > > > > Correct. > > > >> 2. The explanation in the 070-072_ReadMe_Ghent_Output_Patch.pdf says > >> that the crosses should be rendered with Perceptual rendering > >> But what inside the patch tests says that not the default, but the > >> Preceptual rendering intent should be used? I haven't found any > >> rendering intent parameters in the patches. > > > > I haven't looked at the patches, so I can't be certain. > > > > However, I can say that the RI can be changed from the default in one of > > three ways. > > 1 - the 'ri' operator in the content stream > > 2 - the 'RI' key in an ExtGState dictionary (which is set with the 'gs' > > operator) > > 3 - the 'Intent' key on a specific image XObject. > > > > Make sure you've looked at all three. > > > >> Does GTS_PDFX as subtype and/or the ICC profile ine OutputIntents > >> directory forces this? > > > > NO! However, when acting as a PDF/X compliant viewer, you WOULD use that > > profile as the source and/or destination profile for rendering instead of > > some other "working space". > > > > > > Leonard > > _______________________________________________ > poppler mailing list > [email protected] > http://lists.freedesktop.org/mailman/listinfo/poppler _______________________________________________ poppler mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/poppler
