3D PDF for Revit - from tetra4D is a new Plugin product for Revit, that allows user to create 3D PDF's from their revit files, directly within Revit.
The product was recently released at AU2012, and along with 3D PDF for Autocad, won 3rd place in the Autodesk Apphack Competition as part of a live demonstration of how you can combine your 3D views and 2D data into a single rich, interactive 3D PDF.
Check it out - www.tetra4d.com/3d-pdf-for-revit try it free today