Photo geotagging is the process of adding latitude and longitude location data to the EXIF header of JPG photo file. Site such as Flickr is able to extract this info and display a map of the location alongside the photo. iPhoto ’09 is able to make use of the location info for its Places feature, allowing you to categorize photos by location, search photos using readable location names such as “Paris” or even add travel maps to your photos book.

Starting with firmware 2.0, the camera in iPhone is able to geotag the photo’s location with iPhone’s build-in GPS. iPhone requires the following in order to geotag your photo:

• Ensure location service on your iPhone is turned on. Under Settings->General, check that “Location Services” is switched on.

• The first time you use iPhone’s camera, a message appear with the prompt “Camera would like to use your current location”. Tap “OK” to enable geotagging.

• iPhone’s GPS is able to identify your location before it can tag the location. iPhone might not be able to get your location if you’re indoors for example.

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