#152 Deleting of preprinted files

[Miro Halas]

It seems to me that the PDF files generated during
preprinting are not being properly deleted. I go to
View File dialog and preprint some documents, then I
logout and the documents are still there. When do we
delete them? We should delete them at least at the end
of server session when user logs out.

Can we delete them sooner? Maybe the page where we open
Acrobat can be regular JSP page with frame and we open
the Acrobat in frame. The top part would be our JSP
page with somethng like name of document, etc. with
close button and either when user clicks the close
button or on unload we would call server (just simple
get link with the name of the PDF file to delete)