Why do photos contain location? A beginner’s guide to EXIF, GPS and shooting time
A photo can contain a shooting note as well as the visible picture. EXIF is one such structure, and depending on the device and settings it may include a location.
EXIF is a shooting note attached to an image
EXIF can record shooting time, camera model, orientation, exposure settings and GPS information. Available fields depend on the device, app, format and saving method. Not every photo contains coordinates. The visible picture and this less-visible supporting information are different parts of a file.
Coordinates describe a recorded shooting location
A camera app with access to location may store the shooting place as latitude and longitude. A GPS label does not mean satellite signals are the only source used for the device’s position.
A photo file does not continuously update to track its owner’s current location. Measurements can be imprecise, metadata can be edited and a photo may have been taken away from home. Do not treat coordinates as definitive proof of a person or address.
A map in a photo app is not necessarily GPS inside the file
A photo service may estimate a place from visual clues or other information. A map displayed within an app does not necessarily mean that GPS is present in a downloaded image. Google Photos distinguishes camera-recorded locations from estimates. Inspect the actual sharing file, not just the app’s map.
Inspect the file you are actually going to send
- Keep the original and save the intended sharing file on your device.
- Choose its JPEG, PNG or WebP file in Pichn’s metadata tool.
- Review the GPS, shooting time and camera fields that can be read.
- If needed, create a cleaned copy, save it and inspect that copy again.
HEIC is not directly supported by this inspection tool. You can inspect a JPEG converted from HEIC, but doing so does not tell you which fields were present in the original HEIC.
Future camera settings and existing files need separate attention
Disabling camera location does not necessarily remove locations stored in older photos. Handle existing files separately from the settings for future shots. Apple offers controls for camera location access and for excluding location when sharing. Menu names vary with software versions; follow the current official instructions for your device.
No GPS detected is not proof of complete anonymization
In Pichn, an absent GPS result means the tool did not detect coordinates it can read. It does not certify the absence of private custom fields, revealing filenames, service-held location or visible clues. The cleaned copy is separate from the original. JPEG and WebP are recompressed when redrawn, so inspect detail, orientation and file size afterward.
Further reading: IPA: photo location (Japanese PDF, page 9); Apple: manage location metadata in Photos; Google Photos: how location privacy works. Service features and menus can change. Use the provider’s current instructions.
Inspect GPS and shooting details in JPEG, PNG or WebP. No GPS detected is not proof of complete anonymity.
Check location & remove EXIF