Watermark the documents with REST API using .NET or Java SDK. Features include; Add image or text watermarks, remove, replace or search watermarks.... DOCM , DOTX , DOTM , RTF , ODT Spreadsheets XLSX , XLSM , XLTM...PPSX , PPSM , POTX , POTM , PPT , PPS Images BMP , GIF , JPG...