hsCADence is a CAD document conversion tool. It converts to/from DWG and DXF, supports five different CAD file versions (r12, r13, r14, AutoCAD 2000, AutoCAD 2004), exports to PDF, BMP and JPEG, and supports scripting and batch processing via command line parameters.
This software is a commercial software. You will be able to download and test HsCADence during a certain period of time, then, if it does what you need, you will have to acquire the full version from HsCADence publisher. The HsCADence 1.0.10.21 free trial version contains an installer and an uninstaller, and has a size of 4367 Kilobytes.
For additional information and support request, please contact directly HsCADence publisher.

HsCADence Screenshot