Have you ever questioned if JPEG and JPG are distinct file types, you are not alone. It is one of the most popular topics in image conversion, and the explanation is straightforward: JPEG and JPG are identical file type.
The sole difference is the extension — a three-letter leftover of legacy Windows versions which could not handle four-character suffixes. Even so, there are sometimes situations when you might need to change files from .jpeg to .jpg.
JPEG is short for Joint Photographic Experts Group, the organization which developed the format in 1992. Legacy versions of Windows needed file extensions to be only three characters, which is why the extension was shortened to JPG.
Today, .jpg and .jpeg are recognized by any OS, browser and program. Regardless of whether a image is named image.jpg or image.jpeg, it will open exactly the same.
Despite being the same file type, certain legacy software only accept .jpg files and will not accept .jpeg files due to the extension alone. For these situations, renaming here the file extension from .jpeg to .jpg is all you need.
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