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.... AddFont ( "OpenSans-Regular.ttf" , "OpenSansRegular" );...RegisterFontsFromApp ( "OpenSans-Regular.ttf" , "OpenSans-Semibold.ttf"...