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....such as DOC, DOCX, RTF, HTML, Markdown, PDF, XPS, EPUB, and others...such as managing text, shapes, tables & animations, adding audio...