Because my computer is installed with office 20 13 (the personal feeling interface function is similar to that of office 2007), so I will take office 20 13 as an example (other versions should be similar):
Step 1: Open the word document, select "Design" in the menu function area, and click "Watermark" on the far right side of the submenu to pop up the following function menu:
Step 2: Click "Custom Watermark" in the function menu above to open the following window:
Step 3: Here, you can choose to set image watermark and text watermark. To choose a picture watermark, you need to prepare a picture as a watermark, which can be an organization's logo or website address. Select a text watermark. In the "Text" input box, you can select the text options that come with the system, such as "Confidential" and "Top Secret of the Department", or you can click the input box with the mouse to delete the text that comes with you and make a custom input.
Click "Apply" and close the function menu. At this point, the custom watermark has been added to your word document. Isn't that simple?