Dwg2dwf
Easy CAD Converter v.2.5
Convert any to any among DXF, DWG, DWF without the need for AutoCAD. Upgrade or downgrade DXF, DWG, DXF versions click a few mouse clicks! Support DXF DWF DWG versions as early as AutoCAD R11 and as recent as AutoCAD 2011 as well as future versions.