On Fri, Dec 6, 2019 at 4:26 PM Peter Rolf <indiego@gmx.net> wrote:

>
> So we have only basic support for "PDF/A-3a", the more advanced features
> of that format are not supported yet. The main problem here is the
> lacking PDF/A documentation (ISO pay wall).
>

A complete installation of verapdf  has  a very detailed "documentation"
(sort of, it's embedded in the code) based on the ISO standard.

--
luigi