Inserts a watermark on each document page.
| Name | Type | Default | Description |
| sText | string | "WATERMARK" | Watermark text. |
| bIsDiagonal | boolean | false | Specifies if the watermark is placed diagonally (true) or horizontally (false). |
builder.CreateFile("docx");
var oDocument = Api.GetDocument();
var oParagraph = oDocument.GetElement(0);
oParagraph.AddText("A watermark was inserted into this document.");
oDocument.InsertWatermark("Watermark", true);
builder.SaveFile("docx", "InsertWatermark.docx");
builder.CloseFile();