JPG and JPEG are exactly the same photo formats. No distinction between a .jpg photo and a .jpeg photo — both apply the identical JPEG compression standard and store image data in the same way.
The difference is purely in the suffix, as it is a legacy issue from the early days of computing. JPEG was developed in 1992 by the Joint Photographic Experts Group. The Windows operating system launched Windows in the early era, the system imposed a limitation: file extensions were limited to be three characters long.
Causing the 4-character .jpeg extension to be abbreviated to .jpg for Windows users. Mac and Unix systems, not having this extension limitation, could use the longer .jpeg extension from the outset.
Although both check here extensions function the same in virtually all today's programs, there are specific situations in which a service might need the .jpeg file type. When this happens, changing the extension from .jpg to .jpeg is sufficient.
No real file conversion is required — just renaming the file extension resolves the problem in most cases.
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