Acme DWG Converter - All-in-one DWG helper software
Batch dwg dxf converter that allows you to convert DWG,DXF,DWF to PDF, WMF, JPEG, EPS, SVG, CGM, ... and File version converter without the need of AutoCAD, and also enable the conversion between DXF and DWG file versions (AutoCAD R2.5-R2013). Supports eTransmit command like AutoCAD,and batch recover drawing files. it is also a very nice free DWG Viewer.
Screen shots - Click thumbnails to see big image