Because the watermark is at the bottom, cover the watermark with a blank rectangular box and put it under the text.
The method comprises the following steps:
1. Open the WORD document you want to operate, click "Shape" on the Insert tab, and then select Rectangular Insert.
2. Draw a rectangle with an appropriate size on the cover to cover all the watermark contents, and then set the fill color to white by "shape fill".
3. Click "Shape Outline" and select "No Outline".
4. Finally, click "Word Wrap" in the toolbar and select "Word Wrap Under Text".
5. Back to the main document, I found that the watermark on the paper cover was removed from the word document, and other unchanged operations were completed.