I have a client who prints ledger blue prints. They spend a fair amount of time doing this, opening several pdfs, printing them, then closing them. These PDFs are generated out of their architect software, and are being read in Adobe Reader x (foxit works fine too). In any case, these PDFs number about 100 a day. Needless to say, it takes them about 45 min- 1 hour to do them all on a almost daily basis.
I see there are some pdf applications that do handle batching, but we just need them to open file and then print, and close, and pdf in a given network folder.