To sign in a dream documents - the adverse sign. If in a dream you see or sign any document, then in reality you risk to be involved in a certain trial which you will be able only to win in case You will be lucky with the lawyer.
Subject: Profession
Look also: Signature Paper
The word Document or its synonyms meet in oneiromancy: Folder Signature stamp
Be sure and keep any other thoughts out of your mind before drifting to sleep as a cluttered mind can decrease the chances that you will remember your dreams upon waking. Also, focusing on remembering your dreams upon waking in the morning is another very important thing. This sounds very easy, but is often hard for some to do. Interpret a dream by "dictionary dream of interpretation"
When you very first wake up, simply think about your dreams. Don't allow your mind to drift off to other things, just lay there and think about the things you dreamt about the night before - dictionary dream meaning.