The PDFs I have seen include the signature. If CBS copies the docs, they wouldn't have ink signatures.
Trust But Verify!
I am just saying if I was Production Assistant on 60 minuts asked to come up with "Memo Graphics" if after I scanned them and found them to be illegible, I may retype the verbiage save, photoshop out the signature, and meet my deadline.
-- l8s
-- jrawk