I realize this is a very old thread, but here's my observation. I provide IT support for over 100 people in 4 office locations and nothing infuriates me more than Adobe products. For years on multiple platforms, I always have problems reliably printing with browsers that use PDF previews/Web-embedded PDF's (particularly in Google Chrome, but also Safari and others). When it comes to printing, most attempts to print the PDF directly from the browser always fail or only process the job partially. 90% of the users I support are completely computer illiterate, despite my best efforts to educate them (I train, I create user guides and walk-through's), they look at me with blank stares as soon as I try to explain the problem and offer the solution.