I was hoping to throw what I am trying to do out there to see if anyone could give me the best way of handling it. Basically, I have a custom pdf viewer that converts the desired page of the pdf to a jpeg on the server and then sends that image to the browser. The problem is I don't want these images hanging around. Can anyone think of a clever way to clean up the images rather than having a cron job delete them every 'X' minutes??