What kind of watermark has the best anti-theft effect?

Watermarking and anti-theft are relative, not absolute.

1. General watermarks can be removed as long as they are not placed on key parts of the image.

2. To ensure that the watermark cannot be removed, it must be printed on key parts of the image, such as the characters' eyes and other facial features. At the same time, increase the number of watermarks and increase the difficulty of removing the watermarks.

3. Watermarking can only serve the purpose of preventing gentlemen from villains. The real way to protect the intellectual property rights of images is to apply for a patent.