It converts among the three popular CAD drawings’ formats: DXF, DWG, and DWF.
The Graphisoft ArchiCAD Connection is a an add-in for Autodesk Revit programs.
This add-on can process only the 3D geometry data, lights and the 3D view.
Total CAD Printer automates the process of printing CAD files in batches.
A freeware viewer for P-CAD Schematic and PCB files.