From a5e79307f5f90232cf64efd997519ab93c1e8d34 Mon Sep 17 00:00:00 2001
From: Rantaharju Jarno <jarno.rantaharju@aalto.fi>
Date: Wed, 25 Jun 2025 15:47:43 +0300
Subject: [PATCH] Use imgmath for pdf output

---
 .github/workflows/sphinx.yml | 2 +-
 content/conf.py              | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/sphinx.yml b/.github/workflows/sphinx.yml
index 24247ce3..9f64c441 100644
--- a/.github/workflows/sphinx.yml
+++ b/.github/workflows/sphinx.yml
@@ -101,7 +101,7 @@ jobs:
         if: ${{ env.GENERATE_PDF == 'true' }}
         run: |
           pip install https://github.com/rkdarst/sphinx_pyppeteer_builder/archive/refs/heads/main.zip
-          make pyppeteer
+          make SPHINXOPTS="-t pdf" pyppeteer
           mv _build/pyppeteer/*.pdf _build/dirhtml/${PDF_FILENAME}
 
       # Stage all deployed assets in _gh-pages/ for simplicity, and to
diff --git a/content/conf.py b/content/conf.py
index 7f231eb2..24361636 100644
--- a/content/conf.py
+++ b/content/conf.py
@@ -39,6 +39,11 @@
     "sphinx_coderefinery_branding",
 ]
 
+
+if 'pdf' in tags:
+    # Use imgmath for PDF output
+    extensions.append("sphinx.ext.imgmath")
+
 # Settings for myst_nb:
 # https://myst-nb.readthedocs.io/en/latest/use/execute.html#triggering-notebook-execution
 nb_execution_mode = "cache"