暗水印-数字水印 app for iPhone and iPad

What is an invisible watermark?
Invisible watermarks refer to watermarks hidden in pictures that are difficult to see with the naked eye. Compared with common clear watermarks, invisible watermarks are transparent and invisible to most perceptual systems.

What does the invisible watermark app do?
With the development of society, the protection of digital rights is becoming more and more urgent. The invisible watermark app can help you embed your own information in photos and protect your rights.

The app is simple and free, use it quickly.