I need a program to convert Dwg to Pdf: 1) without opening the Dwg and without having AutoCAD installed 2) use line weights mapped to colors 3) with a COM automation interface (Component Object Model) I know Amethyst CADconvert but it do not support Pdf and line weights mapped to colors only in printing not in conversion. Example: start Excel, with a VBA macro select a Dwg file, output a Pdf with line weights mapped to colors, send an e-mail with the Pdf attached and write a report on a line of the current sheet. Thanks. Marco