hsCADence - Batch convert amongst DXF/DWF/DWGBy Hachisoft Corporation : CAD
hsCADence is a CAD document conversion tool. It converts to/from DWG/DWF/DXF, supports six different CAD File Versions (r12, r13, r14, AutoCAD 2000, 2004, 2005), exports to PDF, BMP and JPEG, and supports command line scripting ...