These two formats are exactly the same image formats. There is no technical difference between a .jpg file and a .jpeg file — they both employ the very same JPEG encoding method and encode pictures in the identical manner.
The sole distinction is entirely in the extension, which is a historical artifact from early computer history. The JPEG format was developed in 1992 by the Joint Photographic Experts Group. The Windows operating system released early versions of Windows, the OS had a constraint: extensions were limited to be three characters long.
Which forced the 4-character .jpeg extension to be shortened to .jpg for Windows computers. Apple and Unix platforms, without the extension limitation, used the full .jpeg file extension from the beginning.
Even though both file types work identically in nearly all current applications, there are specific scenarios in which a platform might need the .jpeg extension. When this happens, renaming the file from .jpg to .jpeg is enough.
No real more info conversion of image data is needed — simply changing the file extension fixes the issue usually.
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