On 4/25/25 10:32, Ulrike Fischer wrote:
Am Thu, 24 Apr 2025 17:38:26 +0200 schrieb Pablo Rodriguez via ntg-context:
[...] I thought that PDF/UA-1 didn’t allow (or at least, require) mathml.
Yes, PDF/UA-1 is basically unusable for sensible math tagging.
If you really want to produce accessible math (and not only fool some validator) then you should use PDF 2.0 and UA-2 and MathML (either as structure elements or as associated file on the Formula tag).
Many thanks for your reply, Ulrike, the issue I see is that we don’t have PDF/A-4f for PDF/UA-2, so there would be no way to use images with math. That being said, I have just discovered that there is an associated file for all math content in both PDF/UA-1 and PDF/UA-2 (although it has other problems in PDF/UA-2). Many thanks for your help, Pablo