As an image is processed, editing software will often add to the information. As most people reading this probably know, a digital camera normally stores information about things like exposure and white balance, but also various housekeeping information, like (sometimes) shutter activations. Please add any more information you have about EXIF data, especially useful tools.ĮXIF stands for Exchangeable Image File Format ( Wikipedia article), and describes how metadata is added to image files. I've put a simple intro here, and listed the tools I'm familiar with. Dave has promised to add to " useful and informative threads," so we can keep this for everyone to reference. If you share pictures taken at home and anyone uploads these to Jeffrey's Exif Viewer, they may see a large arrow pointing to where you live.It would be nice to collect information in once place about EXIF data: how to access it, including tools, and what's available. It is also worth checking whether photos you have taken and shared online give away too much information. If the exif data has been removed, it is worth questioning why – as it may signal that someone is trying to conceal information. Geolocation can be key when verifying images. (And in case you are wondering, here is more on Jeffrey.)Īnd as that was taken on a smartphone (an iPhone 4S, as shown in the report above), geolocation details are recorded and displayed in the viewer. The below example is an image I uploaded to Jeffrey's Exif Viewer. The simple tool allows you to upload a photo (or video or audio file) and see the exif data, detailing the time and date it was taken, the type of camera used and other details. She talked about it in a workshop on verification at our news:rewired conference. The team at social news agency Storyful debunked that hoax using TinEye ( more on that here).Īnd it was Storyful's Claire Wardle that pointed us in the direction of this tool, Jeffrey's Exif Viewer. Take this image shared during Hurricane Sandy, which turned out to be created using a photo taken in Nebraska in 2004. How is it of use to journalists? How do we as journalists know if an image sent to a newsdesk or shared on social media is what it purports to be? What is it? Helps in the verification of photos as it displays date, time and location data for the photo. Tool of the week for journalists: Jeffrey's Exif Viewer
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