Watermark ClassNamespace:GemBox.DocumentAssembly:GemBox.Document.dllRepresents the watermark that appears behind the document content.C#VB.NETpublic abstract class WatermarkPublic MustInherit Class WatermarkInheritance:System.ObjectWatermarkDerivedPictureWatermarkTextWatermarkSee AlsoPictureWatermarkTextWatermark