FocusCAD DWG DXF DWF to PDF Converter
This program for MS Windows allows for quick and simple batch conversion of AutoCAD DWG/DXF/DWF files to PDF format, while offering a variety of helpful features.
FocusCAD Inc 
FocusCAD DWG DXF DWF to Image Converter
This software enables fast and easy batch conversion of AutoCAD DWG/DXF/DWF files into several image formats for MS Windows users. It is highly featured and facilitates efficient conversion.