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

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

2. Then find Add multiple pictures on the left and click on it.

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

4. After importing all the photos, find the watermark in the beautified image and click on it.

5. After the system prompts that the processing is completed, click to open the folder and you will see the watermark added to the photo.