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.... To download IntelliJ IDEA: Go to https://www.jetbrains.com/idea/download/...later installed via the IDE: Go to File > Settings > Plugins...