Well my current signature which I've been using since junior school is too bland, simple and boring, its just my name written fast, but I've stuck to it until now. I used it in all circumstances that need a signature, but recently, while attending on my lectures, I doodles a new signature, which personally I think is really cool and artistically beautiful, plus it'll be harder for someone else to copy. Now I'm seriously thinking to change my signature to the new one, but won't that somehow affect all the documents and certificates I've signed throughout my lifetime?