It means to add specific words or patterns to the picture to prevent others from stealing it casually. The method of adding a photo watermark is as follows:

1. First, open Meitu Xiu Xiu and click Batch Processing on the homepage of the software.

2. Then find and add multiple pictures on the left, and click.

3. Import the photos that need to be watermarked into Meitu Xiu Xiu software.

4. After importing all the photos, find the watermark in the beautified pictures and click.

5. After waiting for the system prompt to complete the processing, click Open Folder, and you can see that the photo has a watermark.