Download C# class library DLL to render, edit, report, & convert AutoCAD®, CAD, BIM to PDF & image formats via API. Select & convert specific layouts, layers....DGN, STL, OBJ, STL, CF2, IGES, IFC, PLT, and DXF files, layouts...Other supported formats include IFC, IGES, STL, DWT, PLT, DWFx, CF2...