Most of the newer video tutorials include an opportunity to download PDFs. I think they are in the process of updating all of the documentation, so they will probably add this feature as they do so.
This was often requested when all we had was the videos. I used to have the video running in one screen while adding notes in a Word doc on the other. I think the problem now is that they are releasing new extensions faster than the documentation team can update the old tutorials. :)