Why iPhone photos are saved as HEIC files and how to convert them to JPG

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Since iOS 11, iPhones have stored photos in the HEIC format by default, which preserves quality at about half the file size of JPG. Many Windows applications, upload forms and print services do not accept HEIC, which causes compatibility problems. Users can switch the camera to the Most Compatible setting to shoot JPGs going forward, though files will be larger. Existing photos can be converted using transfer settings, Mac Preview or Finder, Windows Paint with extensions, or Linux command-line tools such as heif-convert. The article's author also promotes a free browser-based converter that processes files locally without uploading them.

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