What is JPG?
Joint Photographic Experts Group
.jpg, .jpeg
JPG, also written JPEG, has been the standard format for photos since the early 1990s. It uses lossy compression: it discards detail the eye is least likely to notice, which keeps photos small.
It is accepted almost everywhere, from cameras and phones to printers, email, websites and government upload forms. It has no transparency, and each time a JPG is edited and saved again it loses a little more detail.




