Oh, I made a mistake about that point. Actually it was TOEFL test scores that were sent with my photo on it.
In Egypt, where I took both the GRE and TOEFL test, the testing center takes photos for the applicants to send them to ETS to ensure that you are the same person whose photo appears on ID and passport.
I received my TOEFL test score report and I found my photo included in the report. but for the GRE they didn't do that it was just my scores in there.
In many non US institutions the student's photo must be attached to transcripts and certificates and must be sealed too.