How to attach letter of reccomendations

Hi, how do I attach my three letter of recommendations onto the common app? Or does my guidance counselor do this directly through their end?

Thanks!

The GC will do this. Usually letters of rec that have been in the student’s possession are invalid.

@TomSrOfBoston Alright thanks! And do you know if the LOR’s apply to all the universities that are being applied to, or is each LOR specified for each specific university?

Nobody I know has any experience with this stuff.