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....getPropertyName(int index)、.remove(String name)、.contains(String...erties.getPropertyName(int index)、.remove(string name)、.contains(string...