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....Français Deutsch عربي 简体中文 Public API and Backwards Incompatible Changes...for .NET 15.1.0 API. Public API Chages Fonts substitutions functinality...