You will likely find that printing to PDF from Revit will lock up and never print. This is a known problem that Autodesk and Adobe have not yet fixed. Download and use PDFArchitect4 or the latest version of it. Printing is free!!!!!
http://download.pdfforge.org/download/pdfarchitect4
After you download and install the software you will need to get an authorization key – it will be emailed to you.
