Advanced DWG to Image Workshop is an interesting tool for users who often work with AutoCAD. It lets you convert DWG or DXF files to graphic images in GIF, JPG, PNG, BMP or TIFF. At no time is it necessary to install AutoCAD to do this conversion.
In the resulting graphic files, after the Advanced DWG to Image Workshop conversion, all the quality of the original file is kept. In that conversion you can scale the original size to another (in some cases, when scaling to a smaller size, you lose some of the lines from the drawing).
Advanced DWG to Image Workshop also lets you do batch processing.