Metadata Lab - Exif Editor
Modern DSLR cameras and cell phones add extensive data to every photo they take. The information recorded includes camera settings like ISO speed, shutter speed, focal length, and other details. Including GPS location. After a photo is taken, and you've downloaded it to your computer, it's possible to add other information to its metadata, including a description, keywords and licensing/copyright information. Some of this information is more important to professional photographers than it is to regular people, but there are reasons why anyone might want to edit the details of a photo.
Some higher end photo management applications have metadata editing capabilities, but if you are piecing together your own workflow, the free app, Metadata Lab is a quick and easy way to add, remove or change information on any photo you have. The app is compatible with RAW, JPEG, PNG, TIFF, and many other formats (including video/audio files). You can import photos from the Mac Photo's App into the Metadata Lab. Not only can you edit the EXIF data, you can also edit IPTC, PDF, PNG and QuickTime metadata.
Use Cases
- Correcting date and time data if it was incorrect on the camera
- Adding GPS data for later personal reference
- Removing GPS data for images shared with third parties or on the Internet
- Adding keywords for cataloging purposes
More information is available on the developer's website. You can download Metadata Lab on the App Store.