First, open the picture with PS and find the watermark that needs to be removed.
Secondly, select the Repair Brush Tool in the left toolbar.
Third, after pressing the ALT key, the mouse will look like this, and then press ALT+ the left mouse button to absorb the background.
Fourth, then hold down the left mouse button and draw from right to left.
5. At this time, the image watermark was successfully removed by PS.