From proprivacy.com
Digital photos are more than a snapshot in time. Unlike their traditional film-based counterpart, they often provide more information than what you get to see in the image itself. As a result, when you take a photo with a digital camera or phone, information about the GPS location where you took the photo, the device you took the photo with, the date and time that you took the photo, and the software used to edit the photo are all attached to the image.