DWGConvert is a ditwin utility that converts an entire folder of.dwg or.dxf files into.isg. It's a time-saver when you're in a position to batch convert many drawings. The latest version adds support for converting older dwgconvert format. It is possible to include or exclude certain types of objects from the conversion. DWGConvert can also batch resize/crop the drawings, convert you can use with either a text or audio file as the name.