DWFIn -- DWF to DWG Converter DWF Importer(a.k.a. DWF to DWG Converter) is An AutoCAD Addin let you import dwf file into AutoCAD. It supports AutoCAD 2005, 2004, 2002, 2000(i) and R14.
PDF to DXF Importer PDF to DXF importer, an AutoCAD Addin help you import PDF file into AutoCAD. It supports AutoCAD 2006, 2005, 2004, 2002, 2000/i and R14