What most Mac users don’t know is that each photo carries with it some metadata, data about the data in the photo. For example, some metadata will contain file type, dimensions, bit depth, time and date stamp, GPS data, but there’s much more. Here’s how you can find a photo’s metadata and, well, edit it.
Photo Meta Edit is a photo metadata editor for the Mac which you can use to view and edit .jpg and .tiff photos; one at a time or by batches of photos. Why would you want to do that? In some cases metadata isn’t recorded correctly and needs to be adjusted. This happens more often with time and date stamps.
In other cases, it may be necessary to remove specific metadata before publishing. For example, GPS coordinates could tell somewhere where the photo was taken. Photo Meta Edit will list all the photos in a folder, and display pertinent metadata for each one. You can edit EXIF file data, GPS information, most IPTC standard photo metadata, and even view where the photo was taken by clicking to view location in Maps.
The user interface is simple and straightforward with very little learning curve. A glossary of terminology would be useful, though. You can even add metadata to the photo.
For example, GPS coordinates can be edited by distance, searched by keywords, and even the app even displays GPS coordinates and nearby airports in the location list.
Earlier versions of Photo Meta Edit were a bit buggy but recent versions have been more dependable, and it works OK on my Mac running macOS Sierra.