DEVELOPMENT HAS MOVED TO claroline/Distribution. THIS REPOSITORY IS NO LONGER MAINTAINED.
This bundle requires wkhtmltopdf (http://wkhtmltopdf.org/downloads.html)
Don't forget to install the fonts (or the install won't work). sudo apt-get install xfonts-75dpi
whereis wkhtmltopdf then set the output of this command in you platform_options file at the knp_pdf_binary_path parameter.
Please store your pdf in the directory speficied in the claroline.param.pdf_directory parameter ($container->getParameter('...');)