GeoTag is a free macOS application that allows you to update image metadata with geolocation tags by panning and zooming in a map window and then clicking on the location where a photo was taken. It is a good way to add location information to photos or fine tune existing location information.

Image file updates are performed using Phil Harvey’s ExifTool. This allows geolocation data to be modified an unlimited number of times with no image degradation as ExifTool modifies metadata without changing the image data. See https://exiftool.org for information regarding ExifTool.

GeoTag Version 4.15

2022-06-02 — GeoTag 4.15 available in the Mac App Store
2022-06-01 — GeoTag 4.15 available from this site in dmg form

GeoTag Operating Instructions

App Store Link

The same (free) app that is available via the following download link is also available in the Mac App Store. Get the app whichever way you like. App compiled for both intel and Apple Silicon Macs.

Download link

Version 4.15 download Requires macOS 10.13 or later. The file is about 10 MB in size. Open the dmg file. Drag the GeoTag application into your Applications folder.

Updated in 4.15

• Add a do not backup option to program preferences. Not recommended, but provided for those who know they always have backups of all their images and see no need to create any more.

• Ignore jpg/jpeg files that are part of a raw+jpg pair. Such files are only ignored when both files of a pair are in the same folder and are opened at the same time.

• Exiftool 12.41; adds support for OM-1 (OM Digital Systems)

Known Bugs

• Race condition: When photos with the same name are among multiple images opened one may fail to open. An alert is displayed when this happens.
• Setting the date of an image outside of the range of 1970-2034 may result in an incorrect GPS Date Stamp. This is a limitation of how GeoTag, ExifTool, and macOS libraries handle date and time. One hopes that the year 2034 limit will eventually be removed ;)

History

A change log for earlier versions can be found on the history page.

GeoTag source code is available on github [link]

Don’t see a feature you want? Know how to code? Grab the code and dig in.

Notes:

• Photos (OSX 10.10.3 and later) will let you modify existing location metadata but not add location data to an image. If necessary use GeoTag to add location metadata before importing the images into Photos. This may also hold true for other image editing applications.

• Please send bug reports, feature requests, or other comments to marc@snafu.org