1)   Acme CAD Converter 7.9
DWG Converter - Batch Convert DWG DXF DWF to PDF WMF BMP JPEG GIF PLT SVG CGM EPS, and also enable the conversion between DXF and DWG file versions (R2.5-R2008).Supports 3d object hidden line removal.

 2)   DWG to Image Converter 2002 2.00
DWG to Image Converter 2002 is an AutoCAD Addin that convert DWG to JPG, DWG to PNG, DWG to TIFF, DWG to BMP, DWG to PS easily. Its easy-to-use interface allows you to create the image files by simply click the "Save as Image" in AutoCAD.

 3)   DWG to Image Converter 2006 2.00
DWG to Image Converter 2006 is an AutoCAD Addin that convert DWG to JPG, DWG to PNG, DWG to TIFF, DWG to BMP, DWG to PS easily. Its easy-to-use interface allows you to create the image files by simply click the "Save as Image" in AutoCAD.