"There, I guess King George will be able to read that," John Hancock may have remarked at the signing of the Declaration of Independence, July 4, 1776. This is possibly a misquote, but legend has it he said this or something like this, which is why his signature has the largest size of any signature on the Declaration.
Only two people signed the Declaration on July 4th - John Hancock, the President of the Continental Congress, and Charles Thomson as secretary. 500 copies of the Declaration were printed and distributed. One copy was sent to King George.
It was not until Aug 2, 1776, that 56 men signed a new copy of the Declaration of Independence, including John Hancock. This is the document displayed at the National Archives in Washington, D.C. On that document, John Hancock's signature is the largest signature. The original 500 copies first printed have been lost over time.