On 4/30/25 00:50, Ulrike Fischer wrote: > > The pdf produced by context maps every structure to NonStruct, that > means there is no tagging structure, it only fools the accessibility > check. You can and should not claim that this an ua-1 file. You can > check the structure by uploading your pdf to > https://texlive.net/showtags, that will produce an xml from the > structure.
Many thanks for your reply, Ulrike. This is an already known issue. The compilation requires https://mailman.ntg.nl/archives/list/ntg-context@ntg.nl/message/YEWPKPJSPTGL7YG7HCDZJTDJA462ADQP/attachment/4/lpdf-tag-imp-testing.lmt. Many thanks for both url references. They are really helpful. > I don't know if the missing structure is the reason that VoiceOver > fails, as I'm on windows, but you could try with a LaTeX document. > Go to https://texlive.net/ngpdf and compile there this example: > > \DocumentMetadata{tagging=on} > \documentclass{article} > \usepackage{graphicx} > \begin{document} > some text > > \includegraphics[alt=an image with a duck]{example-image-duck} > \end{document} Weird. Validating the output against veraPDF-1.29.39, it only checks PDF/A-1b (not PDF/UA-2). > After the compilation you can download the pdf and compare the > reading. Matthias, do your programs read aloud the LaTeX document suggested by Ulrike. Many thanks to both of you, Pablo ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror) archive : https://github.com/contextgarden/context wiki : https://wiki.contextgarden.net ___________________________________________________________________________________
