Not per-image, it would be per-app. The first time it happened it would ask you. There are already quite a few per-app toggles for things like this so it wouldn't be anything new or particularly surprising.

That said, an alternative to bugging the user might be that when the app makes the call to open the file that call should fail unless the app explicitly passes a flag to strip the location data. That way you protect users without causing needless confusion for developers when things that ought to "just work" go inexplicably wrong for them.