[poppler] getting /Catalog /Lang in poppler-glib

[Albert Astals Cid]

El dijous, 14 d’abril de 2022, a les 13:16:58 (CEST), Pablo Rodríguez va escriure:
> Dear list,
> 
> I use the Python bindings for Poppler (through GObject introspection) to
> extract some metadata from PDF documents.
> 
> Here is a minimal script:
> 
> 
>   import sys
> 
>   import os
> 
>   import gi
> 
>   gi.require_version('Poppler', '0.18')
> 
>   from gi.repository import Poppler
> 
>   gi.require_version('Gst', '1.0')
> 
>   from gi.repository import Gst
> 
>   Gst.init(sys.argv)
> 
>   pdf = "a.pdf"
> 
>   uri = Gst.filename_to_uri(os.path.abspath(pdf))
> 
>   doc = Poppler.Document.new_from_file(uri, None)
> 
>   title = doc.get_title()
> 
>   print(title)
> 
> 
> Is there a way that I can extract the /Lang value from the /Catalog
> dictionary? (Attached PDF document with that entry.)

No, thought it should be relatively easy to add support for it. Will you contribute a patch?

Cheers,
  Albert

> 
> I’m afraid I searched https://lazka.github.io/pgi-docs/, but I wasn’t
> able to find anything that could give the language from the document.
> 
> Many thanks for your help,
> 
> Pablo
>