JPG and JPEG are exactly the same photo formats. No distinction between a .jpg image and a .jpeg image — they both use the very same JPEG encoding method and save image data in the exact same format.
The sole distinction is purely in the suffix, being a historical artifact from early computing. JPEG was developed in 1992 by the Joint Photographic Experts Group. The Windows operating system launched early versions of Windows, the OS enforced a restriction: extensions were limited to be no more than 3 characters.
Causing the 4-character .jpeg extension to be abbreviated to .jpg for Windows users. Apple and Unix get more info platforms, which never had this extension limitation, could use the complete .jpeg file extension from the beginning.
Although both file types perform equally in virtually all current applications, certain situations where a system requires the .jpeg file type. In these cases, renaming the file from .jpg to .jpeg is sufficient.
No image file conversion is required — simply renaming the file extension fixes the problem almost always.
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