i dont want to give a law lesson here but from my profesional experience i can tell you that you better wake up early if you intend to prove that you did not consent in whole to what appears in a document that you have signed further than that signature also gives a somewhat fair idea of the concept notably pointing out that a signature is evidence of the provenance identity of the document signing a document is proof that it comes from you personnaly what does not mean that it cannot also come from other persons as well for instance you can have parties to a contract all can be held personnaly to the whole unless stated otherwise