Hi,
You are welcome. A little stimulus:

On my Mac, with MacTeX2025, because 2026 has problems with the Harfbuzz
driver and fallback fonts...

Best, /PA
ox-latex maintainer

On Tue, 23 Jun 2026 at 16:53, Roger Schürch <[email protected]> wrote:

> Hi Pedro,
>
> Wow, this was very quick. Thank you so much. I will try to test things
> as soon as I can. I will let you know how I get on.
>
> Thanks again,
> Roger
>
> Pedro Andres Aranda Gutierrez <[email protected]> writes:
>
>
> > PS:
> > I know this looks like a blog ;-)
> >
> > You get the same result with the following document
> >
> > #+BEGIN_SRC org
> > ,#+STARTUP: beamer
> > ,#+LATEX_COMPILER: lualatex
> > ,#+OPTIONS: toc:nil
> > ,#+LATEX_CLASS: ltx-talk
> > ,#+LATEX_CLASS_OPTIONS:
> > ,#+TITLE: Testing =ltx-talk=
> > ,#+BEAMER_THEME:
> > * A frame
> > - First
> > - Second
> > - Third
> >
> > ,# Local variables:
> > ,# org-latex-hyperref-template: nil
> > ,# org-latex-packages-alist: nil
> > ,# org-latex-default-packages-alist: nil
> > ,# End:
> > #+END_SRC
> >
> > if you add the following in your emacs config:
> >
> > #+BEGIN_SRC emacs-lisp
> > (use-package ox-beamer
> >   :ensure nil
> >   :after org
> >   :config
> >   (add-to-list 'org-latex-classes '("ltx-talk"
> "\\DocumentMetaData{tagging = on}
> > \\documentclass{ltx-talk}\n")))
> > #+END_SRC
> >
> > But I don't know if that is enough or you really need to add
> \frametitle{} or you can add the title after the frame.
> > Again, I'll need people interested in testing all this ;-)
> >
> > Best, /PA
> > ox-latex maintainer
> >
> > On Tue, 23 Jun 2026 at 08:30, Pedro Andres Aranda Gutierrez <
> [email protected]> wrote:
> >
> >  Hi Roger, all
> >
> >  A quick and dirty test on my playground [1] shows that we only need
> minimal changes to produce something that resembles the examples for
> >  ltx-talk.
> >  I need two things:
> >
> >  1.- People willing and able to test this out with more elaborate
> examples that resemble real-life situations
> >  2.- To synchronise with Ihor to see how we want to start integrating
> these changes.
> >
> >  With what you have in the the feature/fontspec branch in [1],
> converting this document:
> >
> >  #+BEGIN_SRC org
> >  ,#+STARTUP: beamer
> >  ,#+LATEX_COMPILER: lualatex
> >  ,#+LATEX_CLASS: ltx-talk
> >  ,#+BEAMER_THEME: Boadilla
> >  ,#+TITLE: A quick an dirty test
> >  ,#+OPTIONS: toc:nil
> >
> >  * A frame
> >  @@beamer: \\large@@
> >  - First
> >  - Second
> >  - Third
> >
> >  ,# Local variables:
> >  .# org-latex-classes: (("ltx-talk" "\\DocumentMetadata{tagging = on}
> >  ,#   \\documentclass{ltx-talk}\n"))
> >  ,# org-latex-hyperref-template: nil
> >  ,# org-latex-default-packages-alist: nil
> >  ,# org-latex-packages-alist: nil
> >  ,# End:
> >  #+END_SRC
> >
> >  Will produce:
> >
> >  #+BEGIN_SRC latex
> >  % Created 2026-06-23 mar 08:13
> >  % Intended LaTeX compiler: lualatex
> >  \DocumentMetadata{tagging = on}
> >  \documentclass{ltx-talk}
> >  \author{Pedro A. Aranda}
> >  \date{\today}
> >  \title{A quick an dirty test}
> >  \begin{document}
> >
> >  \maketitle
> >  \begin{frame}[label={sec:org6a55eb1}]
> >  \frametitle{A frame}
> >   \large
> >  \begin{itemize}
> >  \item First
> >  \item Second
> >  \item Third
> >  \end{itemize}
> >  \end{frame}
> >  \end{document}
> >  #+END_SRC
> >
> >  At least, it looks promising,
> >  WDYT?
> >
> >  Best, /PA
> >  [1] https://codeberg.org/paaguti/org-mode.git
> >
> >  On Tue, 23 Jun 2026 at 06:51, Pedro Andres Aranda Gutierrez <
> [email protected]> wrote:
> >
> >  Hi again,
> >
> >  I’m going to start looking into this from the examples in texdev. They
> are sort of simple and I think it should be doable. If you have
> >  something more sophisticated, it’d be nice once I have the basic
> version.
> >
> >  I’ll share it in Savannah as feature/presentations.
> >
> >  Best,/PA
> >  Enviado desde mi iPhone
> >
> >  El 23 jun 2026, a las 6:35, Pedro Andres Aranda Gutierrez <
> [email protected]> escribió:
> >
> >  Hi Roger,
> >
> >  I haven’t used ltx-talk but would like to start exploring. Do you have
> any sample presentation/document to share? It would be the
> >  perfect starting point to evaluate whether we need a full exporter or
> just a clever set of settings.
> >
> >  Thx/PA
> >  Ox-latex maintainer
> >
> >  Enviado desde mi iPhone
> >
> >  El 22 jun 2026, a las 23:50, jdashiel <[email protected]> escribió:
> >
> >  Several years ago i asked if org pdf content was or could be made
> accessible and got a negative feply. Microsoft word puts a
> >  language tag describing the language used in the documents. If a word
> document is sent into a pdf file it can at least talk on
> >  screen readers though figures will also need tagging.
> >
> >  Sent from my Galaxy
> >
> >  -------- Original message --------
> >  From: Roger Schürch <[email protected]>
> >  Date: 6/22/26 15:04 (GMT-05:00)
> >  To: [email protected]
> >  Subject: [FR] Exporter for ltx-talk
> >
> >  To deliver accessible learning content, universities request that PDFs
> made available to students be tagged and pass their
> >  validation tools. The LaTeX package ltx-talk, together with LuaLaTeX,
> supposedly allows the creation of tagged PDF slides similar
> >  to the LaTeX's beamer. The latter seems ill suited to produce compliant
> PDFs. To produce compliant PDF slides, I would love to
> >  have an export backend for ltx-talk. Alternatively, I would love to
> hear how other Org-mode users produce compliant PDF slides.
> >  ---
> >  Roger Schürch
> >
> >  --
> >  Fragen sind nicht da, um beantwortet zu werden,
> >  Fragen sind da um gestellt zu werden
> >  Georg Kreisler
> >
> >  "Sagen's Paradeiser" (ORF: Als Radiohören gefährlich war) => write BE!
> >  Year 2 of the New Koprocracy
>


-- 
Fragen sind nicht da, um beantwortet zu werden,
Fragen sind da um gestellt zu werden
Georg Kreisler

"Sagen's Paradeiser" (ORF: Als Radiohören gefährlich war) => write BE!
Year 2 of the New Koprocracy

<<attachment: ltx-talk.zip>>

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