I was wondering when I apply to college and use the same letter of recommendations from different sources for their applications? Do they know that they same letters?
You upload one or two recs to the common app and then send them to the schools you designate. Of course colleges know that students use the same letters. They used them too, when applying to colleges.
Of course they do. They are not expecting that the recommendations be unique to their university, and with the Common App, that’s not even an option anyway.
Actually it is—you can assign specific recommenders to a specific school. But I suspect there are very few situations that would call for that.