Re: org-mode export to (latex) PDF

[Maxim Nikulin]

On 10/07/2021 20:52, Juan Manuel Macías wrote:
> I agree with you that Org should have multilingual support. A few months
> ago I started this thread here, with some proposals:
> https://orgmode.org/list/87o8d95pvo.fsf@posteo.net/

I tried to draw more attention to support of locale-aware formatting of 
numbers on emacs-devel mail list. Certainly a question concerning 
mixed-language buffers were raised. Result of attempts to discuss text 
properties to mark regions having alternative languages was just "Which 
property will help here? we don't have such properties" from Eli Zaretskii.

>  > Jean-Christophe Helary writes:
>
> > I guess it is an issue with the Latex backend and could have been
> > solved with the proper Latex settings, but it seems weird that the
> > default settings do not allow for out-of-the-box multilingual
> > support.

(add-to-list 'org-latex-inputenc-alist '("utf8" . "utf8x"))

might help. I am not an active LaTeX user last years, so I am unaware 
whether \usepackage[utf8x]{inputenc} has any drawbacks.