Suggestions for an easy way to add gps data to jpegs

You can use geotag software. This is java software and should run on your Mac machine.

1. Load photos (drag and drop may work)
2. In case of need you can adjust time/timezone of photos
3. Then File->Load tracks from file
4. Select images you want to write location
5. Right click, Save new location->Selected images

In the Photos app which comes with all Macs, you can select the photo and click the info icon (circle with an i in it or else type CMD-i) and then edit the meta data including adding location data. In fact, you can select multiple photos and edit the location for the group. I haven't tested it, but I'm assuming you can then export the pictures as JPEG and the location info will remain.

I figured out how to do it in adobe Lightroom. I add my photos to my LR catalogue by importing them to the catalogue. Go to the map portion of the program - the photos will stay displayed in the filmstrip on the bottom of the screen. In the map search bar at top, type in where the photo was taken then the map comes up in the window. I select the photos I want to mark then drag and drop them where I want them on the map. That populates the gps field with coordinates. I them save the metadata to the files, command S I believe on Mac, and that's it. tks all!