Re: ox-latex: help: LATEX_HEADER from different subtrees collision

[Pedro <pinmacs@cas.cat>]

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Hi Rudy,

You nailed it!! Using property EXPORT_LATEX_HEADER exactly solves my 
problem, thank you very much. For completeness, I will re-attach the 
file with the solution

How did you know that, should that be mentioned in the corresponding 
section? (I could not find another one) [1] [2]. Maybe that two links 
together should be more linked and more explained the subtree case.

Serve at least this discussion as a pre-documentation

Regarding the attached file: I thought it was minimal enough, 94 lines 
that runs on vanilla emacs (emacs-30 branch); but maybe I missed a 
little summary: it is two subtree exports handled with a ~#+begin_src 
emacs-lisp~, and there was a clash using the LATEX_HEADER

Cheers,
Pedro

[1] https://orgmode.org/manual/LaTeX-header-and-sectioning.html

[2] https://orgmode.org/manual/Export-Settings.html

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* ox-latex-problem
** [2024-09-02 Mon]
*** report #1 (landscape)
:PROPERTIES:
:EXPORT_LANGUAGE: en
:EXPORT_TITLE:
:EXPORT_SUBTITLE:
:EXPORT_AUTHOR:
:EXPORT_DATE:
:EXPORT_OPTIONS: toc:nil timestamp:nil num:nil
:EXPORT_TOC: headlines 2
:EXPORT_FILE_NAME: /tmp/report2.pdf
:EXPORT_LATEX_HEADER: \usepackage[a4paper, landscape, margin=0.5cm]{geometry}
:CLICK_TO_SEE_REPORT: file:/tmp/report2.pdf
:END:

#+name: sourceblock_created_2024-09-02_23-36-05
#+begin_src emacs-lisp :exports none :results none
(defun my/export-pdf ()
  "renders the PDF"
  (org-narrow-to-subtree)
  (org-show-subtree)

  (org-latex-export-to-pdf nil t t nil)

  (widen)
)
(my/export-pdf)
#+end_src

# do not use this LATEX_HEADER because is buffer scoped!
# #+LATEX_HEADER: \usepackage[a4paper, landscape, margin=0.5cm]{geometry}

**** My report #2

***** Introduction

Introduction text

***** The report #2

Report #2 text

***** Conclusions

Conclusions text

** [2024-09-01 Sun]

*** report #2 (portrait)
:PROPERTIES:
:EXPORT_LANGUAGE: ca
:EXPORT_TITLE:
:EXPORT_SUBTITLE:
:EXPORT_AUTHOR:
:EXPORT_DATE:
:EXPORT_OPTIONS: toc:nil timestamp:nil num:nil
:EXPORT_TOC: headlines 2
:EXPORT_FILE_NAME: /tmp/report1.pdf
:CLICK_TO_SEE_REPORT: file:/tmp/report1.pdf
:EXPORT_LATEX_HEADER: \usepackage[a4paper, margin=3cm]{geometry}
:END:

#+name: sourceblock_created_2024-09-02_23-36-07
#+begin_src emacs-lisp :exports none :results none
(defun my/export-pdf ()
  "renders the PDF"
  (org-narrow-to-subtree)
  (org-show-subtree)

  (org-latex-export-to-pdf nil t t nil)

  (widen)
)
(my/export-pdf)
#+end_src

# do not use this LATEX_HEADER because is buffer scoped!
# #+LATEX_HEADER: \usepackage[a4paper, margin=3cm]{geometry}

**** My report #1

***** Introduction

Introduction text

***** The report #1

Report #1 text

***** Conclusions

Conclusions text

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