This guide describes how to build your CAD files viewer in C#. View CAD files (DWG, DGN, DXF) to render As HTML, JPG, PNG, or PDF using GroupDocs.Viewer .NET API by GroupDocs....This guide describes how to build your CAD files viewer in C#. View CAD files (DWG, DGN, DXF) to render as HTML, JPG, PNG, or PDF using GroupDocs.Viewer .NET API by GroupDocs.