The PDF generation was problematic and looked horrible (quite a few
bugs with the generation no one was willing or knew how to fix)...
If one wants an offline version I recommend that they clone the site git repo:
git clone
https://code.google.com/p/selenium.site/
and then run the site (do this first while still online):
mvn jetty:run
this will "download the internet" to allow one to run the site. Later
you should be able to 'unplug' and run:
mvn -o jetty:run
-o is offline mode.
you're "offline" version of the site will be available at
http://localhost:8080