Apple iOS 27.2 introduces SynthID invisible watermark for AI image tools

Apple introduces SynthID invisible watermark for some Apple Intelligence image tools (iPhoto, Image Magic Wand, and Clean Up, Extend, and Space Reconstruction in Photos) in iOS/iPadOS/macOS 27.2. It is invisible to the human eye but can be read by the SynthID detector. Users can check if an image has a watermark at synthid.com; this technology supports pixel-level annotation of real image data to prove photo authenticity.