Worked examples
Two different authorization forms show a signature with the same small loop. Compare the form borders, heading and signature position as well. If the whole page agrees, the files may be copies of one page. If the text differs but the signature image recurs, record exactly which region appears shared.
A stored signature image can be used with or without permission. Even a striking match cannot identify the person who inserted it or establish consent. Request the source files and the account of how both forms were produced before attributing an act to anyone.
