I have a large number of photos on my iPhone that were taken at an event, but only some of them have GPS information. The ones missing the information were airdropped to me by other attendees without the setting to retain this data. I want to copy the GPS information from a photo that has it (e.g., that I took) to the photos that don't have it. I have not been able to find a way to do this. Is there one?
I want the GPS information to be added to the image files themselves rather than being stored in some other way (as would be the case if I added the information using Google Photos' "Add location" feature).
I'm running iOS 15.5 on an iPhone SE (2nd generation). Any solution based on an iOS app or on something in the cloud should be okay. I don't have access to a Mac. I have a Windows machine.