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....' ) layer = Rjb :: import ( ' com . aspose . pdf . Layer ' )...). new ( "oc1" , "红色线条" ) layer . getContents (). add ( operator...