Jekyll documentation to PDF with TOC

Question

I would like to write documentation using Jekyll with HTML and PDF outputs. Html can have a navigation but the PDF should have table of contents. Is there a free and easy way to do that?

The HTML part is easy but I would like to use @media print CSS for making the PDF file.

I have a few ideas how to do this.

1. Use PrinceXML, unfortunately this is commercial product with a nasty price tag ~$500
2. Use WKHTMLTOPDF
3. Use Maruku, since it is possible to do a PDF conversion using it

I would like to have multiple pages HTML and single page PDF with a TOC. Any suggestions?

Btw. Buildr has solved this problem using PrinceXML.