How to get tagging on in new LaTeX (was Re: How to get tagging off in new LaTeX)

> David Carlisle wrote
> 
>> On Sun, 2 Nov 2025 at 19:53, Norbert Preining <norbert at preining.info> wrote:
>> 
>> OTOH - how do I enable all features that are currently available to
>> create tagged PDF?
> 
> A short quick guide with interactive examples is at
> 
> https://latex3.github.io/tagging-project/documentation/usage-instructions
> 
> If people want to skip the full manuals

BTW, I forgot: thanks David for this pointer, quite useful, to get an idea of what tagging is, what it provides, and how that's done with the latest LaTeX.

As for the full manuals, do you mean those at

https://latex3.github.io/tagging-project/documentation/documentation-pointers

I was looking for something in TeX Live, some texdoc invocation that would bring a documentation for tagging, but your message made me realize it should be looked online instead.

In particular, for \DocumentMetadata{}, that page mentions documentmetadata-support-code.pdf which I had no idea existed. It answers most of my questions from the other day.

Actually, it's even simpler than this: the two files documentmetadata-support-code.pdf and documentmetadata-support-doc.pdf (same with only doc, no code) are in TeX Live, at texmf-dist/doc/latex/latex-lab, and "texdoc documentmetadata" picks up the former, so you don't have to remember the full name documentmetadata-support-*.

Bruno