EXIF Data
Metadata automatically embedded in JPEG photographs containing camera settings, GPS location, date, and other capture information.
Last updated
What Is EXIF Data?
EXIF (Exchangeable Image File Format) is a metadata standard embedded automatically by digital cameras and smartphones in JPEG and TIFF image files. Every photo you take contains an EXIF block recording technical and contextual information about the capture.
What EXIF Contains
| Category | Fields |
|---|---|
| Camera | Make, model, serial number |
| Lens | Focal length, aperture (f-number) |
| Exposure | Shutter speed, ISO, exposure compensation |
| Date and time | Year, month, day, hour, minute, second |
| GPS | Latitude, longitude, altitude, speed |
| Image | Width, height, colour space, orientation |
| Copyright | Author, copyright notice |
| Thumbnail | A small preview image of the photo |
Privacy Risk: GPS Data
Smartphones embed GPS coordinates in every photo by default (unless disabled in settings). When you share a photo containing GPS EXIF data, anyone can extract the exact latitude and longitude where the photo was taken.
Tools such as Google Photos, Instagram, Facebook, and Twitter strip EXIF on upload. However, sharing photos directly via email, WhatsApp, or a direct file link preserves all EXIF data.
Stripping EXIF
To remove EXIF before sharing:
- On Windows: Right-click → Properties → Details tab → "Remove Properties and Personal Information"
- On macOS: Use Preview → Tools → Show Inspector to view; use Image Capture or command line to strip
- Our Compress Image tool strips all non-essential metadata automatically
EXIF and File Size
An average JPEG from a smartphone contains 20–150 KB of EXIF data. For a single photo, this is negligible. For a web gallery of 500 photos, stripping EXIF saves 10–75 MB of total page weight.