Originally Posted by
http://discussion.autodesk.com/thread.jspa?messageID=5417990
Autodesk DWG TrueView views a DWG file and can publish a DWF.
Autodesk Inventor View views IAM, IPT, and IDW files and can publish a DWF.
Autodesk Revit works with RVT files and can publish a DWF.
Rather than have to provide measurement capabilities for all of these
different formats, we have standardized on DWF.
Autodesk Design Review will let you measure distances and areas in a DWF. If
you import a DWG into Autodesk Design Review, it will convert it to DWF on
the fly.