Apple is giving iPhone 18 Pro users a new way to check whether a photograph has been changed, as artificial intelligence (AI) makes edited and computer-generated images harder to identify.
The company introduced Apple Reference Image, a feature that creates a protected record of what the iPhone camera originally captured. It is available on the iPhone 18 Pro and iPhone 18 Pro Max through a new Reference mode.
When a user takes a photo in this mode, the new 48-megapixel Fusion Main camera records signed data from its sensor. Apple’s Private Cloud Compute then turns this data into what the company describes as an unalterable reference image.
The reference image appears in the Photos app beside the regular picture. Users can compare the two images to see whether changes were made after the photo was taken. Apple likens the reference copy to a digital negative because it preserves what the camera saw at that moment.
The feature could be useful for photojournalists and photographers who need to show that an image is authentic. It may also help ordinary users judge whether a picture they are viewing has been edited.
Apple is supporting this system with image metadata, or information stored inside a photo file. The company also plans to support SynthID, a standard that can help identify images created or changed using AI.
Apple is making application programming interfaces, or APIs, available in iOS, iPadOS, and macOS 27. These tools will allow third-party apps to display Apple Reference Images.
The authenticity feature arrives alongside major camera upgrades. The iPhone 18 Pro models have a 48-megapixel Fusion Main camera with variable aperture, a first for the iPhone. The aperture controls how much light enters the camera and how much of the scene stays in focus.
The camera can automatically adjust its aperture for low-light photos, portraits, and group shots. Users can also choose from four aperture settings manually.
New Pro controls provide direct access to aperture, shutter speed, and white balance. Users can also view a histogram, which helps them check whether a scene is too bright or too dark.
These editing tools come as Apple Intelligence gains more ways to change pictures, including Spatial Reframing, Extend, and an upgraded Clean Up feature. Image Playground can also create photorealistic images.
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