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....cURRENT_VIEWPORT Field/Enum com.aspose.cad...cadConsts.cadHeaderAttribute.vIEWPORT_ENTITY_HEADER_CONTROL_OBJECT...