Total CAD Converter version 3.1.0.154 is a software program that converts CAD files to other formats such as PDF, TIFF, JPEG, BMP, and PNG. The software supports a variety of CAD formats, including DWG, DXF, and DWF, and can convert multiple files at once. It offers advanced customization options, such as the ability to adjust color schemes and line widths, and includes a simple user interface.