EXIF Data Explained: What It Is and How to Read It
October 20, 2026
EXIF data is information stored inside a photo file alongside the image itself. It records things like the camera model, the date and time, exposure settings and, if location was switched on, the GPS coordinates of where the picture was taken. You don't see it in the picture, but any software that reads the file can see it.
It is useful for photographers reviewing their settings, for businesses organising photo libraries, and for anyone who needs to know when and where a picture was taken. It is also a privacy risk if you share photos without checking what they carry. The rest of this guide covers what is in EXIF, how it differs from IPTC and XMP, how to view it, and what you can and can't rely on it for.
What EXIF stands for and how it works
EXIF stands for Exchangeable Image File Format. It is a standard for storing metadata, meaning data about data, inside image files. Your camera or phone writes it automatically at the moment you take the photo. No setup is needed.
The data is stored as numbered tags in the file's header area. Each tag holds one fact, such as the shutter speed or the latitude. Software like Windows Explorer, macOS Preview, Lightroom or a website's upload form reads those tags and shows them in readable form.
What is inside EXIF data
The exact fields depend on the device and its settings. These are the ones you will see most often:
| Group | Typical fields | What it tells you |
|---|---|---|
| Device | Make, model, lens, software | Which camera or phone took it, and which app last saved it |
| Date and time | Date taken, date digitised | When the shutter fired, according to the device clock |
| Exposure | Aperture, shutter speed, ISO, focal length, flash | How the shot was made |
| Image | Width, height, orientation, colour space | Technical properties of the file |
| GPS | Latitude, longitude, altitude, direction, GPS time | Where the device was, if location was recorded |
| Thumbnail | Small embedded preview | Used by file browsers and some cameras |
Not every photo has all of these. Screenshots usually have no camera data. A photo from a basic camera with no GPS chip has no location. Photos saved from some websites or messaging apps may have most fields removed.
EXIF vs IPTC vs XMP
These three terms are often mixed up. They are different metadata formats that can live in the same file.
- EXIF is mostly technical and automatic: camera settings, timestamps and GPS. Devices write it for you.
- IPTC is descriptive and usually added by a person: title, caption, keywords, creator, copyright and contact details. It comes from the news and publishing industry.
- XMP is a flexible, XML-based format created by Adobe. It can carry much of the same descriptive information as IPTC, and many editing tools read and write it.
In practice: EXIF says what the camera knew, while IPTC and XMP say what a person wants to say about the photo. If you want a picture to carry a description, keywords or business name, that goes in IPTC/XMP. If you want it to carry coordinates, that is the GPS part of the metadata.
How GPS location is stored
GPS data in EXIF is a set of fields: latitude, a reference letter (N or S), longitude, a reference letter (E or W), and optionally altitude, compass direction and a GPS timestamp. Some tools show it as decimal degrees, like 51.5007, -0.1246, and others as degrees, minutes and seconds.
Phones add this automatically when the camera app has location permission. Most dedicated cameras don't unless they have built-in GPS or are paired with a phone. That is why a folder of camera photos often has no location while phone photos do.
If you need to add coordinates to photos that lack them, see How to Add GPS Coordinates to Photos Online (Step by Step). iPhone users have a slightly different route, covered in How to Add Location to iPhone Photos (New and Existing).
How to view EXIF data
You don't need special software for a quick look.
On Windows
Right-click the file, choose Properties, then open the Details tab. You will see camera, date, exposure and GPS fields if they exist.
On Mac
Open the photo in Preview, then choose Tools > Show Inspector and look at the Exif and GPS tabs.
On iPhone
Open the photo in Photos and swipe up, or tap the info button. You'll see the date, camera and a map if location exists. This view is a summary and doesn't show every tag.
In a browser
The free photo metadata checker shows what a file contains, including location and descriptive fields, so you can check before you publish or share.
Why EXIF data matters
For photographers: it records the settings behind each shot, which helps you learn what works. It also lets software sort images by date, camera or lens.
For businesses and teams: date and location data can help organise job-site, property or service photos. A folder sorted by time and place is easier to audit than a pile of anonymous files.
For privacy: a photo taken at home and posted unchanged could include your home coordinates. Many large social platforms remove location data when you upload, but that varies by platform and can change, so it is safer not to assume.
What EXIF can't tell you
EXIF is helpful but not proof of anything.
- It can be wrong. The date comes from the device clock. If the clock or time zone was set incorrectly, the timestamp will be too.
- It can be edited. Anyone can change or delete EXIF fields with free tools. A matching date and location is a clue, not evidence of authenticity.
- It can be stripped. Many messaging apps, social networks, CMS image optimisers and compression tools remove some or all metadata. A photo that arrives without EXIF may have started with it.
- GPS can be imprecise. Indoors or in dense areas, phone location can be off by many metres.
Does EXIF help SEO?
There is no confirmed answer. Google has not published how it uses photo metadata for ranking, and some platforms strip metadata on upload, so any claim that adding EXIF location will lift your rankings is unproven. Metadata is still good housekeeping: it keeps your own library organised and makes your files self-describing. For web visibility, visible page content such as alt text, captions and surrounding copy is what you can verify and control.
Editing EXIF and IPTC data
You can change metadata with desktop tools such as Lightroom or ExifTool, or with a browser-based editor. Geotagr writes GPS coordinates plus a title, description, keywords and business details (IPTC/XMP) into your photos. Everything runs in your browser, so the photo files aren't uploaded to Geotagr's servers. It opens JPG, HEIC, PNG and WebP files; HEIC, PNG and WebP are converted and saved as JPG.
If you tag many photos at once, batch tagging and presets save time. Paid plans add GPX track matching, CSV import and AI suggestions; see pricing for details.
If you are preparing images for a specific purpose, these guides apply the same ideas: geotagging photos for Google Business Profile, and for real estate listings or contractor job sites.
Related guides
FAQ
Is EXIF data the same as metadata?
EXIF is one type of metadata. Metadata is the broader term for any data about a file. IPTC and XMP are other kinds that can sit in the same image.
Do all photos have EXIF data?
No. Photos from phones and digital cameras usually do, but screenshots, graphics and images processed by some apps or websites may have little or none.
Can I see where a photo was taken from its EXIF data?
Only if GPS coordinates were recorded and are still in the file. If location was off when the photo was taken, or a platform removed it, there is nothing to read.
Does EXIF data increase file size?
Slightly. Most EXIF is small, though an embedded thumbnail can add some kilobytes. It rarely matters for file size compared with the image data.
Is it safe to share photos with EXIF data?
It depends on what is inside. Camera settings are harmless, but GPS coordinates can reveal private places. Check a file first with a metadata viewer and remove location data if you don't want to share it.
Do PNG and WebP files have EXIF?
They can, but support is less consistent than in JPG and HEIC, and some tools don't read or write it. If metadata matters for a file, check it after saving.