How to add a watermark with a text or image to the document

Question Comments

Don't work for me with the last build :
the text on the page (the real one : not the watermark text) disapears from left to right when zooming ... try to set the zoom at 200 %

in fact it seems that it is a horizontal scrollbar problem ... try to zoom and play with Hscrolling

But, After you save as it to word, You can see the layout is corrupted by the watermark. So how to deal with it?

Hello,

To process your recent post more efficiently, I created a separate ticket on your behalf: T147935: Corrupted document layout. This ticket is currently in our processing queue. Our team will address it as soon as we have any updates.

Hi，
for text watermark with chinese font (Simhei), your following shapesize calculaition code caused clipped watermark. The text cannot be fully displayed. Could you please help us? Thanks.
          Size sizeInPixels = TextRenderer.MeasureText(text, measureFont);
          shape.Size = new SizeF(Units.PixelsToDocumentsF(sizeInPixels.Width, richEditControl.DpiX), Units.PixelsToDoc

Hello,
The issue occurs depends on the value returned by the standard System.Window.Forms.TextRenderer.MeasureText method and doesn't rely on our products.
To resolve the issue, increase a shape size as follows:

[C#]
shape.TextBox.Document.EndUpdateCharacters(cp);shape.TextBox.HeightRule=TextBoxSizeRule.Auto;shape.RotationAngle=-45;SizesizeInPixels=TextRenderer.MeasureText(text,measureFont);shape.Size=newSizeF(Units.PixelsToDocumentsF(sizeInPixels.Width,richEditControl.DpiX)+ 10,Units.PixelsToDocumentsF(sizeInPixels.Height,richEditControl.DpiY));

Please try this solution and let me know your results. 

Hi,
Really? Do you have check "Units.PixelsToDocumentsF"?