Class Libraries & REST APIs for the developers to manipulate & process Files from Word, Excel, PowerPoint, Visio, PDF, CAD & several other categories in Web, Desktop or Mobile apps. Develop & deploy on Windows, Linux, MacOS & Android platforms.... Support for DXF / DWG / DGN 3D Solids (Conic, Sphere, Torus...Basic view cube positions 3D Faces Support for DXF / DGN Surfaces...