What hidden metadata looks like
Image metadata is stored in structured blocks appended to the image file. The most common standard is EXIF (Exchangeable Image File Format), which defines specific field names for technical and geographic data. The GPS coordinates can be entered into any mapping application to show the exact location where the photo was taken. The date and time can be cross-referenced with other information to reconstruct someone's schedule. The device model can be used to narrow down the identity of the photographer when combined with other data. A typical iPhone photo might contain:
- GPSLatitude: 37.7749 (a precise coordinate)
- GPSLongitude: -122.4194
- GPSAltitude: 52 meters
- DateTimeOriginal: 2026:03:14 09:22:11
- Make: Apple
- Model: iPhone 16 Pro
- Software: 18.3.1
- FocalLength: 6.86 mm
- ISOSpeedRatings: 125
Where to check it, by platform
You can read most of these fields with tools you already have. Here is the fastest way on each platform, and what each one shows.
| Platform | How to check | What it shows |
|---|---|---|
| Mac | Preview, then press Cmd+I | GPS, camera data, and most EXIF tabs |
| Windows | Right-click, Properties, Details tab | GPS, make and model, date (a partial set) |
| iPhone | Open the photo and swipe up | Location, date, camera, and aperture |
| Any browser | Drop the file into an EXIF reader | Every readable field, with no upload |
Checking metadata on macOS
On a Mac, the easiest way is through Preview or the Finder:
- Preview: Open the photo, then go to Tools > Show Inspector (or press Cmd+I). Click the GPS tab to see coordinates, the EXIF tab for camera data, and the TIFF/General tabs for additional fields.
- Finder Get Info: Right-click the file and choose Get Info. Expand the "More Info" section to see basic EXIF fields. GPS coordinates appear here if present.
- Photos app: Open the photo and press Cmd+I to see location and date information in the info panel.
Checking metadata on Windows
On Windows, right-click the image file and choose Properties, then click the Details tab. This shows GPS latitude and longitude, camera make and model, capture date, and other EXIF fields that Windows reads from the file.
The Details tab does not show all possible metadata fields. For a more complete view, third-party tools or a browser-based reader give more thorough results.
Checking metadata on iPhone
In the Photos app, open a photo and swipe up (or tap the info icon) to see the map location, date, time, camera, and aperture information. This shows the most relevant EXIF fields in a readable format.
The Files app does not display metadata. Third-party apps like Exif Metadata or Photo Investigator provide more detail if you need to inspect all fields.
Using PhotoTools to check metadata
The EXIF reader in PhotoTools runs in your browser and shows all readable metadata fields from an image file without uploading it to a server. Drop in any JPEG or HEIC file and the tool displays the fields it finds — GPS coordinates, capture time, camera model, and others — before you decide whether to strip them.
This is useful for checking a photo before sharing and for verifying that a previously cleaned file is actually clean. Drop in the file, confirm that GPS and other sensitive fields are absent, and proceed.
Fields that matter most for privacy
Technical fields like focal length, aperture, ISO, shutter speed, and white balance are generally not sensitive for privacy purposes, though they can help identify a specific camera when combined with other information. When reviewing a photo's metadata before sharing, prioritize these fields:
- GPSLatitude / GPSLongitude: the highest-risk fields. Reveal the exact location where the photo was taken.
- DateTimeOriginal: can establish where you were at a specific time or reveal daily patterns over a series of photos.
- Make / Model: identifies the device. Less sensitive alone but can be identifying when combined with other public information.
- Software: reveals OS or app version. Generally low risk but unnecessary for public photos.
After finding metadata: what to do
If you find GPS coordinates or other sensitive fields in a photo you plan to share, the options are below. Always verify the file after cleaning by dropping it back into a metadata reader and confirming the sensitive fields are absent. The most common mistake is cleaning one copy and then inadvertently sharing the original.
- Strip the metadata using the Remove EXIF tool before sharing. This produces a clean copy with no metadata. The original in your library is unchanged.
- Use the iOS share sheet option (iOS 15+): when sharing via the share sheet, tap Options and disable Location. This works for standard share actions but not for all sharing paths.
- Disable GPS for future photos via Settings > Privacy & Security > Location Services > Camera > Never. This does not affect existing photos.