The solution I've found, is to save the PDF to the computer and open it through Acrobat Reader directly. This almost always resolves the printing issues. The frustrating part of this is that my user base just does not understand or they complain about the extra steps involved to make it work. There's nothing special about the environment they are using. We have commercial copier/printers ranging from Kyocera, Canon, HP, Lexmark and Brother - with lots of memory and a solid Gigabit LAN infrastructure that I know isn't involved with the behavior I am seeing, yet this problem persists across all devices. I would LOVE, LOVE LOVE for Adobe/Google/other browser companies to just make printing from the preview work!! It's been a problem for years and years, I've never had as many problems with software as I have with web-embedded PDF's and printing.