A family of Microsoft word processing software products for creating web, email, and print documents.
Hi, I'm John! I will help you with this.
Just to clarify, is this in Microsoft Word for Windows?
When you go to Design > Watermark > Remove Watermark, does nothing happen on the remaining pages?
It sounds like the document may have multiple sections, and the watermark could be attached to different headers. Since you do not see "Header - Section 2" when double-clicking the top margin, can you check whether the document contains section breaks?
Also, was the watermark inserted using Word's Watermark feature, or was it added as a picture or text box?
Please let me know which version of Word you are using (Word for Microsoft 365, Word 2021, Word 2019, etc.) and what happens when you try to remove the watermark from the other pages.