If you possess a completed or modified written instrument you know is fake and you do so with the intent to defraud or deceive another. Forgery does not necessarily require that you personally signed or altered the document, it is enough to pass or use a forged document if you know it is forged.Forgery is a white-collar crime that involves the practice of falsifying a signature, handwriting, or seal or counterfeiting legal documents. It is illegal to forge or alter a prescription with the intent to commit fraud or to obtain a controlled substance, such as a narcotic or opioid. Take your copies of the documents (with the Clerk's stamp on it) to the Clerk of Court for your county. Filing a false document is a felony offense that carries a punishment of up to three years in State Prison and the possibility of substantial fines. Forgery, in law, making of a false writing with an intent to defraud. Thus, you will face the charge of forgery in the third degree if you falsely complete, make or alter a written instrument with the intent to defraud.