Take the 2-minute tour ×  For things like images or html
documents, cache headers make sure that the data is deleted when
the browser is closed. However as PDFs are opened in a plugin,
the cache headers do not seem to have the intended purpose. PDFs
are often left behind in the temp folder on windows machines.
Are there any cross-browser ways of making sure they are removed
from the computer?  The scenario is that I have some files on a
server accessible via the Internet, and expect that users may
read them on shared and/or publicly-accessible computers. I
don't want copies of these files left behind on such systems,
and can't trust/expect the end-user to clean up after
themselves.  share|improve this question Perhaps I'm the only
one seeing this, but it seems sort of vague-ish as to whether
you're trying to address this from a client-side or server-side
position. I think you want it addressed in the website itself
(server-side) - am I correct? –  Iszi Apr 27 '11 at 7:35 Oh,
sorry. My question is, is there a