Extract all individual images from multi-image HEIC files in Shortcuts on iOS and macOS
A shortcut for iOS and macOS that can for example be used to extract all the individual images from Apple's multi-image wallpaper files. Can also be used to batch convert both single-image and multi-image HEIC files to JPEG. Seems like every HEIC-compatible app on the App Store is only able to extract the first image from multi-image HEIC files. Same with the Convert Image action in Shortcuts app. There's also a Get Frames from Image action, but that's only for animated GIF and photo burst files, according to the description. It actually accepts HEIC files as well, but unfortunately only the main image get's extracted here too. What about tricking the action to extract the others too by changing the file extension to gif , without the resulting images ending up as GIFs, despite the troubling extension name? That's exactly what this shortcut is doing.