I have been trying to put a PDF onto my department Ning. A couple of Twitter followers tried to help. Finally found the "paper" icon when I added "blogs," so I was able to put it on a blog.
I wanted students to be able to write on worksheets that I post on Moodle. But the Moodle version of Reader seemed to missing the necessary component. I was trying to have students save to their computer to use the school version of Reader, but that was not working. BUT, a freshman figured out a way: copy and paste to OneNote. Voila. We can now write with our stylus on worksheets.