This Topic describes how To use the GroupDocs.Viewer .NET API (C#) To convert CAD files (DWG, DGN, DXF) To HTML, PDF, PNG, and JPEG formats....This topic describes how to use the GroupDocs.Viewer .NET API (C#) to convert CAD files (DWG, DGN, DXF) to HTML, PDF, PNG, and JPEG formats.