Hi, Just for fun, I ran the test myself. I do not have gm installed, so the inclusion of the tiff failed, and (perhaps not coincidentally) I have no artifacts in the png image in my output either.
Best wishes, Taco > On 21 May 2019, at 09:52, Hans Hagen <j.ha...@xs4all.nl> wrote: > > On 5/17/2019 9:43 AM, Rudolf Bahr wrote: >> On Thu, May 16, 2019 at 02:40:07PM +0200, Hans Hagen wrote: >>> On 5/16/2019 12:21 PM, Rudolf Bahr wrote: >>>> The problem with artefacts in .png images is still unsolved for me. >>>> I can circumvent it by using .jpg or .tiff images instead of .png images >>>> as long as no transparent areas in the images are needed. As far as I know >>>> .jpg and .tiff formats cannot handle transparancy, do they? >>>> >>>> Now in .log files messages like >>>> "luatex warning > pdfe: invalid 11 0 R object at offset 223611" >>>> can be seen. Please, what do they mean? >>> Does that come from an pdf generated by image magick>? If so, the problem is >>> there ... the last years I've seen lots of converted files with bogus pdf >>> objects. (Kind of harmless but still.) >>> >>> Hans >> No. I never use neither ImageMagick nor GraphicsMagick to generate images in >> .pdf-format. Even with my scanner software I produce always .jpg-images >> though it >> is capable to produce .pdf-output too. The only .pdf-files I'm doing are >> made by >> ConTeXt-LMTX! > > ah, but you ask for an tiff image .. there is no native tiff support so that > one gets converted to pdf beforehand ... you can see an m_k_i_v_* image in > your path ... as gm is called that is the reason why you get the bad object: > it really is in that pdf file ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___________________________________________________________________________________
