It is a bi-directional converter between DWG and DXF.
This tool converts DWG to DXF and DXF to DWG quickly and easily. The program is stand alone and no other program is required for it to complete its job. Not even AutoCAD. Often when you need just the format conversion, it would be a shame to tie up a full-fledged and expensive AutoCAD to do this conversion. Autodesk has released several versions to the DWG and DXF formats. This tool supports all these formats that include R2.5/2.6, R9, R10, R12, R13, R14, R2000/2002, R2004/2005, 2007/2008/2009/2010/2011/2012 formats. The utility will help you convert files between format versions too. This has a simple and easy to use interface. It is intuitive enough that most users should get familiar with it quite easily. Getting productive with it should not take much time. The program can process a batch of files at a time. This should save you time and let you gain in productivity. When creating the batch of files to be processed, you could click a check box to get sub-directories also included with the directories you choose.
It is compatible with Windows up to Windows 7. This program has a command-line interface that lets you gets things done easily when the user has become experienced. The trial version could be used 15 times, after which you will need to register the tool. This is a good product. It has many useful features. If you were looking for a product like this, this is one you could try out.