On Tue, 30 Apr 2024 at 10:01, Linas Stonys <lsto...@vtex.lt> wrote: > I get different colors of png image (attached europe.png) when I > compile lualatex and pdfflatex. > Image contains some "transparency group". > Differences are seen in acrobat but pdfxchange and sumatra shows the > same (normaly like pdflatex did) > See attached wrong_image_diff.png. > > Here's what one expert told me about pdfs with this image: > """ > pdflatex inserts parameters dictionary 'Group' inside the page > dictionary and luatex doesn't. > Acrobat precisely interprets all parameters that's why the view is > different. Other viewers > work mach simpler and the view gets the same. > 'transparency group' mast exists because image is with the 'soft mask' > which > meant that image mast be painted with 'transparent imaging model'. > I guess that luatex draws image with 'opaque imaging model' > """ > > I hope you'll understand this comment (I translated it to english :)) > Could luatex load png like pdftex does? >
Hm, I will check it. -- luigi
