We want to announce that GNU Free Documentation License 1.3 has been added as one of the license alternatives for PMC (Parabola Multimedia Collections) from now on.
So far, we had only Free Art License 1.3 and Creative Commons Attribution-ShareAlike 4.0 International License as options for redistribute and/or modify our multimedia files through the wiki, repo and git for PMC (Parabola Multimedia Collections), formerly PAC (Parabola Art Collections) and POM (Parabola Official Multimedia). However, Richard Stallman suggested us use the GNU Free Documentation License 1.3 as one of the license alternatives to make compatible with FSF works, so we want to be thankful for his suggestion!