We have around 350 users, mostly engineers. We used to have Adobe Acrobat Standard 10, then 11 and when it printed the plan sheets we would end up with wingdings instead of text. So we go a few licenses of Bluebeam Revu CAD to try out. Bluebeam is as expensive as Adobe. The ACEC forum we belong to was discussing PDFXchange as a great alternative at only a tiny fraction of the cost. We ordered PDFXchange for all users with some users still having Bluebeam Revu CAD.