itwbennett writes: Sandra Henry-Stocker became curious about how much more complex the jpg format had become since she first did a deep dive into it more than twenty years ago, so she dug into how much information is stored and where. "This information is quite extensive — depending on the digital camera you're using," says Henry-Stocker, "containing detailed information about the photo such as the make and model of the digital camera that was used, whether a flash was used, the focal length, light value, and the shutter speed that was used when it was taken. And, if your phone/camera has geotagging turned on, it will also include the altitude, longitude and latitude of the place where the photo was taken." Henry-Stocker used exiftool to extract and label the data so you can see what is collected, and how you can protect your privacy as well as your intellectual property.
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