Download C# class library DLL To render, edit, report, & convert AuToCAD®, CAD, BIM To PDF & image formats via API. Select & convert specific layouts, layers....allows high-quality conversion of DWG, DWF, DWFX, DWT, DGN, STL, OBJ...surfaces, and meshes within DWG, DXF, DWF, and DGN file formats...