J.J. Abrams wrote a letter to his cast and crew for their first day of filming:
Dearest Cast and Crew, What an honor it is to work beside all of you, on Star Wars Ep VII. I can’t thank you enough, for all work past and future. Let’s take good care of not just ourselves, but of each other. Amazing, but true: the world awaits this film. Let’s give ‘em something GREAT. xo JJ
The watermark across the letter is name of the script supervisor, Dawn Gilliam. The red paper is pretty standard practice for Bad Robot memos and scripts going back to the days of LOST.
That was nice of Abrams.