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....FilePath + "Locking WordArt Watermark.xlsx" ; //Instantiate a new... Worksheets [ 0 ]; //Add Watermark Aspose . Cells . Drawing ...