Applying background to document Word


I would like to apply a background to a document word, background coming from another .doc file.

What is the best way to apply it? Watermark?

Thanks a lot for lights.


PS: Coding in c#


Thanks for your inquiry. It depend on what you need to achieve. If you need to set page background color, the you need to use Document.PageColor property:
If you need to insert background image, then you can use Document.BackgroundShape property:
And if you need to insert a watermark, you can use code provided in this article:
Hope this helps.
Best regards,