

Select "based on content" as the fill option.Upload the image to the program so that it opens with it.And obviously the program can also help you to remove watermarks. One of the best known image editing programs in the world is Photoshop. But if you see that it looks bad, you can try other programs.

We can't tell you that it's going to be perfect, because sometimes it is true that there can be a small blur that, knowing that there was something there, will shock you quite at sight.

Do not worry, it will not delete that box, but it will take care of erasing it leaving the rest of the image intact.
