You need Pandoc installed to use this service menu and a LaTeX engine like TeX Live. If you get as output a file with missing fonts, look for extra fonts searching "TexLive fonts" in your packages manager.
With this service menu 3 custom presets are included:
- A4: optimized for A4 documents
- Smartphone: optimized for reading on smartphones
- e-Reader: optimized for reading on e-ink readers