INFO:

JPEG is a file extension that stands for Joint Photographic Experts Group. The ISO standard was originally released back in 1992. It is a bitmap compression format, most commonly used for lossy compression, with compression ratios ranging from 10:1 to 20:1. The compression ratio can be adjusted which means you can determine your own balance between storage size and quality. The JPEG extension is most commonly used by digital cameras and photo sharing devices. Then we have the JPG format. There are actually no differences between the JPG and JPEG formats. The only difference is the number of characters used. JPG only exists because in earlier versions of Windows (MS-DOS 8.3 and FAT-16 file systems) they required a three letter extension for the file names. So .jpeg was shortened to .jpg. As you can see, when it comes to the difference between JPG and JPEG, there is none. JPG was simply born out of a limitation that existed by previous versions of Windows and or DOS, and now is actually the most common format, over that of JPEG.