JPG to JPEG Same Format Different Extension

JPG and JPEG are exactly the same file formats. No difference between a .jpg photo and a .jpeg file — both formats employ exactly the same JPEG compression standard and encode pictures in the same way.

The only difference is only in the file extension, being a legacy issue from early computing. The JPEG format was created in 1992 by the Joint Photographic Experts Group. Early Windows released early versions of Windows, the operating system had a limitation: file extensions were here limited to be 3 characters.

Causing the 4-character .jpeg suffix to be abbreviated to .jpg for Windows computers. Non-Windows systems, not having the three-character restriction, could use the longer .jpeg file extension from the outset.

Even though both file types perform equally in nearly all current applications, some cases where a platform may specifically require the .jpeg file type. When this happens, converting from .jpg to .jpeg is sufficient.

No real conversion of image data is required — only updating the file extension solves the compatibility concern almost always.

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