I do this a lot, usually via the University of Auckland website.
Currently not working, both via the uni site, and from google.
I'm getting a largly blank white webpage (with a small brand image at the top of the page and item reference numbers - both of which will be in a different format on the actual PDF), occasionally a totally black page.
(I can post a screen shot if someone can tell me how to upload one via photobucket)
I can open existing PDFs saved on my computer no problem