A family of Microsoft word processing software products for creating web, email, and print documents.
If you want a watermark that can't be removed, send a piece of paper with a genuine watermark.
Sorry.
Rule #1: If they can see it, they can copy it.
Rule #2: If they can copy it, they can modify it.
I expand on these in the following page: **No Copies - No Editing**
Send as pdf and it will be harder to remove than than in Word format. Convert it somehow to a jpg and it becomes even more difficult. You can print and use a scanner to do this. You could, then, insert that jpg into a Word file.
T hat said, there are some things that you can do in Word.
The methods you can use in Word are designed to help keep honest people honest. They will not prevent a dishonest person who is willing to do a little research and work from deleing your watermark.
Watermarks in Word are dimmed images in the header or footer. They have a "watermark" tag on them so that they can be manipulated using the Watermark feature.
You can create your own non-Word watermark by inserting your own image in a header or footer. Then it can't be minapulated using the Watermark commands.
You can create a watermark in Word, then copy the image to the clipboard and delete the watermark using the watermark command. Then re-insert the image (in the header).
**You can use a macro to limit access to the header.**However, that only works if the recipient allows macros to run. Most do not.