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....documentProperties -> idx_set ( u "New Custom" , ObjectExt :: Box < int32_t...documentProperties -> idx_set ( u "Custom" , ObjectExt :: Box < int32_t...