I am struggling to create accessible pdfs directly with LaTeX in the first place. Therefore, I am trying to retrofit some accessibility options using Adobe Acrobat Pro DC. However it seems, that not even text is recognized in a LaTeX-compiled pdf. This seems very strange to me. Is there anything that I have to keep in mind when I compile the document to prepare it for making it accessible with Adobe Acrobat Pro?
The best way to create an accessible PDF with LaTeX today is to create a PDF/A-Nb, N being 1 to 3. The sole thing LaTeX fails is tagging. The rest like colour management and adding tags it can do. Use hyperxmp to add all the metadata you need. See this minimal example as a starting point.
In order to check accessibility the free PAC3 is imo better than Acrobat Pro.
Once you have metadata and colour management Acrobat Pro is quite good in generating tags. Nevertheless usually you need some manual adjustments (also in Acrobat Pro) to achieve meaningful tagging. The real test is to read your document with «reflow» (Ctrl+4) enabled.
copy-pastetag on this website of interest, which the aforementioned question is a part of. For more general accessibility matters, see e.g. this question, or theaccessibilityorpdfcommenttags. – steve May 01 '20 at 13:54accessibility. It's badly broken (I'm the maintainer) and I'm not sure if its fixable. – Andy Clifton Jun 25 '20 at 09:00