Edit exif metadata in images
Open Photos app on your Mac.
With Photos tab selected in the left pane, rght click any thumbnail on the right and select Get Info. A window opens, showing the file name and format, camera data, and profile photos of people that Photos recognizes.
Click in the window, and you can add or edit title, description, keywords and location.
For more data:
Open image in Finder.
Click Tools > Show Inspector in the top toolbar. This opens a window containing four tabs. The first tab provides summary information, and clicking on the second tab reveals 5 more tabs: General, IPTC, EXIF, JFIF and TIFF. Click on these to see all the metadata information.
ExifEdit gives an intuitive way to edit EXIF & IPTC metadata for thousands of photos in a single click.