converter cli + tests

.gitlab-ci.yml

@@ -74,7 +74,7 @@ stages:
     - apt install -y xvfb # Virtual framebuffer for GL stuff.
     - apt install -y inkscape pdftk
     - apt install -y latexmk  poppler-utils # latexmk and pdftocairo
-    - apt install -y texlive-latex-recommended
+    - apt install -y texlive-latex-recommended texlive-latex-extra
     - pip install -U Pillow
     - pip install -e ./
     - cd tests