AutoCAD DWG / DXF Version Converter support to convert various versions of multiple DWG and DXF files in any multiple source directories into selected DWG and DXF version files in a target directory. - Support DWG and DXF R9~2007 version for input format. - Support DWG(R12~2004) and DXF(R9~2004) for output format. - Add unlimited numbers of DWG and/or DXF files from any selected source directories for input file list. - Convert multiple files in the input file list into a target directory with detail conversion status log. - Support simple and easy user interface.