You’ve heard of a JPEG file, which typically has .jpeg or .jpg at the end of its name. But what’s a “.peg” file? Likely an error on JPEG files, and one that appears to have cropped up years ago but still plagues some users.
It’s unclear why some JPEG files wind up with a “.peg” suffix, even though the image data isn’t correct. However, confronted with a .peg file, Photos for macOS will pop up an error on import that notes it “couldn’t load an asset.” This stymies people, because you can’t rename files in Photos for iOS.
The solution winds up simple enough, however. It requires your Mac.
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On your Mac, launch Applications > Image Capture.
