where is temporary pdf stored?

If opened from an IE browser session, the temp file is typically stored in the Temporary Internet Files folder(s).  I've never identified a naming convention for these files though, I don't know how you'd systematically be able to link to it.

C:\documents and settings\username\local settings\temporary internet files\  and then a series of subfolders.

When I open IE's temp folder, it does not hold any pdf files, only other file types. I was thinking that maybe Adobe has its own temp file folder ?

Pls ignore my previous comment, the pdf is contained in the IE's temp fodler. I was looking at the most recent date stamps in the temp folder, and could not see any pdf's. Turns out the date stamp does not correspond to the download date, but the document creation date, so the pdf turned up much further down the list than I expected. Thanks for your help!