JPEG and JPG are the same photo formats. There is absolutely no technical difference between a .jpg photo and a .jpeg file — both formats employ exactly the same JPEG encoding method and store photos in the exact same format.
The difference is entirely in the suffix, which is a historical artifact from the early days of computing. JPEG was developed in 1992 by the Joint Photographic Experts Group. Early Windows launched early versions of Windows, the operating system had a restriction: file extensions were limited to be no more than 3 characters.
Which forced the 4-character .jpeg suffix to be shortened to .jpg for Windows users. Apple and Unix platforms, without this character limit, used the complete .jpeg file extension from the start.
Although both file types function the same in almost every current applications, some cases where a platform may specifically require the .jpeg extension. In these cases, changing the extension from .jpg to .jpeg is enough.
No image file conversion is needed — just renaming the file extension read more resolves the compatibility concern usually.
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