Every photo from a phone or camera carries a second document inside it: the EXIF metadata. For a typical phone photo that includes the GPS coordinates of where you stood, the exact time, the device model, and the camera settings. The photo of the sofa you are selling can also be a map reference to your living room - and whether that matters depends entirely on where the photo goes next.
What is actually in there
EXIF - Exchangeable Image File Format - rides inside JPEG and HEIC files, and its usual contents fall into three groups:
Location. Latitude and longitude, precise to a few metres, plus sometimes altitude and heading. Written by default on phone cameras with location services on.
Time and device. Timestamp to the second, camera or phone model, sometimes the software version that edited the file.
Photography data. Aperture, shutter speed, ISO, focal length, lens - the part photographers actively want preserved.
Checking is easy: on macOS, open a photo in Preview and press Cmd+I; on Windows, right-click, Properties, Details; on the phone itself, the info panel in the photos app shows the map pin if there is one.
Who strips it, and who does not
The confusion around EXIF comes from inconsistent handling downstream:
Big social platforms strip it on upload. Instagram, Facebook and X remove metadata from the published copy (while reading it first for their own purposes). This is why “I posted it publicly and nothing happened” is not evidence the data was gone.
Messaging apps vary by setting. WhatsApp’s default image compression removes most metadata, but “send as document/original quality” options keep the file intact - metadata included.
Email and file transfer keep everything. An attachment or a file sent through storage is the file, byte for byte. That is the entire point of file transfer, and it means metadata travels with it.
The rule of thumb: any channel that preserves original quality preserves the metadata too. The channels that destroy quality destroy it. You rarely get to choose one without the other by accident - so choose deliberately.
When keeping EXIF is the point
Stripping metadata is not a universal good. Photographers delivering work want the capture data intact; the timestamps are how a photo library sorts itself; and GPS data is how you find the beach from that holiday again. For client photo delivery, stripped files are damaged goods.
The question is never “should metadata exist” - it is who receives it.
Sharing on your terms
For photos going to people you trust with the context, share the originals and think no more about it.
For everything else, match the share to the audience:
A view-only link shows the image without handing over the file. When you share a photo view-only, the recipient sees a rendered preview in the browser rather than receiving the original for download - the difference between showing someone a photo and giving them the document. We support this per-link: the same photo can go to a client as a full-quality original and to a public forum as a view-only preview.
Strip location before sending originals to strangers. Both phone platforms offer “remove location” at the share sheet; on a computer, exporting from the photos app without metadata does the same. Marketplace listings, forum posts and anything public deserve this ten-second step.
Time-bound the link itself. A photo share that expires limits the audience in time as well as space, and a password limits forwarding. The full ladder is covered in sharing sensitive documents - identity documents and photos of children sit at the careful end of it.
The two-question habit
Before sharing any photo, two questions cover almost everything: does this channel preserve the original file, and is this audience one I would hand the location and timestamp to? When the answers are “yes” and “no” respectively, strip the metadata or switch to a view-only share. That is the entire discipline - it just has to become a habit before it helps.
Frequently asked questions
What information is stored in a photo's EXIF data?
Typically the GPS location where it was taken, the exact date and time, the device model, and camera settings such as aperture and shutter speed. Phone cameras write location by default when location services are on.
Does WhatsApp or Instagram remove EXIF data?
Large social platforms strip metadata from the published copy, and WhatsApp's standard compression removes most of it. Options that send the original quality file generally keep the metadata intact.
How do I share a photo without revealing my location?
Remove location at the share sheet on iOS or Android before sending originals, or share a view-only link so the recipient sees a rendered preview rather than receiving the original file.
