* Nico Rikken nico.rikken@fsfe.org [2015-10-22 23:10:10 +0200]:
- Skim is BSD licensed, not listed, but from my experience the easiest
(the only one) to install.
Unfortunately that particular reader is non-free. While the UI is Free Software, last time we checked the renderer is a proprietary library and thus we decided not to list it on pdfreaders.org.
Regards, Matthias