Quoting a post by Philipp Kiff,
https://mastodon.social/@pkiff/112219488889350928:
In amongst the release of PDF/UA-2 (PDF for Universal Accessibility) and
the new Well-Tagged PDF (WTPDF) standard last month, some PDF
professionals may have missed two other new resources that may help
explain and view them:
1. Questions and Answers about Tagged PDF from PDF association
2. Acrobat Custom File Info Panels by Peter Wyatt
Last month saw the release of PDF/UA-2 and the new Well-Tagged PDF
(WTPDF) standard - neither of which revokes PDF/UA-1. And none of those
are the same as PDF 1.7 vs 2.0. To many, the landscape of PDF specs may
now seem littered with confusing acronyms and versions!
For some help disentangling it all, the PDF association has a Questions
and Answers about Tagged PDF:
https://pdfa.org/resource/tagged-pdf-q-a/
In related news, Peter Wyatt released Acrobat Custom File Info Panels.
This is a free extension for Acrobat that adds new panels to the XMP
metadata shown when you view File > Properties in Acrobat Pro.
The new panels allow you to view the additional conformance claims and
dated revisions of ISO standards that can now be included in PDFs, but
that aren't currently visible in the standard Acrobat panels.
https://pdfa.org/discovering-pdf-metadata/
One thing I realized in reading through the new standards and looking at
various sample files this week is that I should probably spend some time
learning LaTeX! Both LaTeX and LibreOffice are already capable of
producing PDF/UA-2 files, and with some tweaking, LaTeX can produce what
appear to be really good WTPDF files. Kudos to both those development teams!
https://github.com/latex3/tagging-project/discussions/72
Finally, in case you missed earlier posts from last month, here are
links to the official sources for the two new PDF standards that these
other resources relate to:
1. PDF/UA-2
https://pdfa.org/iso-14289-2-pdfua-2/
2. Well-Tagged PDF (WTPDF)
https://pdfa.org/wtpdf/
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