What Is The Difference Between JPG & JPEG?
The terms JPG and JPEG are often used interchangeably when referring to digital images. However, there is a subtle difference between the two. We explore the distinction between JPG and JPEG and understand their significance in the world of digital images.
JPG: A compressed image format
JPG (Joint Photographic Experts Group) is a widely used image file format that employs lossy compression. It is the most common format for storing and sharing digital photos. The JPG format reduces file size by eliminating certain image details considered less important to the human eye. This compression technique allows for smaller file sizes, making storing and transferring large numbers of images easier. However, this compression can also lead to a slight loss in image quality.
JPEG: The standard extension
JPEG is the full name of the file format commonly associated with JPG. The term “JPEG” refers to the file extension that represents the compressed image format. While “JPG” is a shortened version, it essentially refers to the same image file format as JPEG.
When the JPEG format was first introduced, it was officially labeled as ‘JPEG.’ However, because of a Windows requirement that limited file extensions to three letters, the extension JPG was used instead. This limitation did not apply to Mac and Linux OS, so users could save images in the full JPEG format.
Later, when Windows changed its requirements to allow longer file extensions, JPG continued to be used. As a result, both JPG and JPEG files became common and interchangeable. Despite having different extensions, they can be renamed without losing any functionality.
The difference in file extensions
The difference between JPG and JPEG lies in their file extensions. JPG uses the “.jpg” extension, while JPEG uses the “.jpeg” extension. The choice of extension largely depends on the operating system or software being used. Some platforms and software may only support one of the extensions, while others may accept both. From a technical standpoint, however, there is no significant difference between the two formats.
Common usage and compatibility
Both JPG and JPEG are widely accepted and supported by various operating systems, devices, and software applications. When it comes to sharing images online or sending them via email, both formats are compatible with most platforms. Some camera manufacturers and photography enthusiasts prefer the “.jpeg” extension as it adheres more closely to the original acronym. Nonetheless, both formats are recognized globally.
Should you use JPG or JPEG?
Since JPG and JPEG are essentially the same, it does not matter which one you choose. Both formats offer compression technology to reduce file size while keeping the image quality intact. When saving or exporting images, use the extension that is compatible with your software or platform. If you’re unsure, check the specifications provided by the software or the recommended file format for the intended use.