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....Sie nicht eine einzelne Presentation Instanz in einer Multithreading-Umgebung...sicher, eine Instanz einer Presentation Klasse in mehreren Threads...