[poppler] Why poppler, which supports tagged PDFs, doesn't recognize some of the tags as a whole?

[Albert Astals Cid]

El dijous, 24 de juny de 2021, a les 7:48:45 (CEST), Denis Bitouzé va escriure:
> Hi,
> 
> the joined `test.pdf` file is properly tagged as you can check it by
> loading it at:
> 
>   ┌────
>   │ https://www.ngpdf.com/loadFile
>   └────
> 
> and then looking at:
> 
>   ┌────
>   │ https://www.ngpdf.com/editor/editFile
>   └────
> 
> You can see each line of the code:
> 
>   ┌────
>   │ \pdfdict_new:n   {l_my_action_dict}
>   │ \pdfdict_put:nnn {l_my_action_dict}{Type}{/Action}
>   │ \pdfdict_put:nnn {l_my_action_dict}{S}{/URI}
>   │ \pdfdict_put:nnn {l_my_action_dict}{URI}{(https://www.latex-project.org)}
>   └────
> 
> is a single tag.
> 
> Nevertheless this code, if copied e.g. from Evince 3.38.1, is pasted not
> as it is and but as:

That would be a question for the Evince developers (some of them are on this is i guess so you may still get an answer).

The fact that poppler has facilities to "see" the contents of tagged pdf doesn't mean that evince is using them.

Cheers,
  Albert

> 
>   ┌────
>   │ \pdfdict_new:n
>   │ \pdfdict_put:nnn
>   │ \pdfdict_put:nnn
>   │ \pdfdict_put:nnn
>   │ {l_my_action_dict}
>   │ {l_my_action_dict}{Type}{/Action}
>   │ {l_my_action_dict}{S}{/URI}
>   │ {l_my_action_dict}{URI}{(https://www.latex-project.org)}
>   └────
> 
> Thanks!
>