Hello Florian,
* fleasoft@gmx.net fleasoft@gmx.net [2009-02-03 12:11:44 +0100]:
If you see any chance to add this information (which PDF version is a) an open standard, b) certified by ISO and c) encumbered by software patents), please do so.
We are working on this page, which will than be linked from "Read More".
Thanks for the feedback, Matthias