Try to build with pdf.

mkdocs.yml

@@ -71,6 +71,7 @@ markdown_extensions:
 plugins:
   - same-dir
   - search
+  - with-pdf
   - minify:
       minify_html: true
 

requirements.txt

@@ -1,3 +1,4 @@
 mkdocs-material
 mkdocs-same-dir
 mkdocs-minify-plugin
+mkdocs-with-pdf