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....currentTimeMillis ()); Calendar cal = Calendar . getInstance (); //...setTime ( myDate ); cal . add ( Calendar . YEAR , - 1 ); System . out...