PDFPOST Excellent app!! In Tiger, it actually fixes a StuffIt Expander 10 issue - namely that StuffIt Expander 10 does not come with DropStuff. When you select the "Archive [this item] feature in the desktop contextual menu, it archives then proceeds to unstuff the file. Zippist does an excellent job of archiving PDFs so they can be sent to fussy firewalled network clients.
(Version 1.2)