SHA2-256(grafmin-user-guide-a4.pdf)= bcbf25f525c3846a6bb8a286ce6737baa57af4fb15433d3a661ca793b654282d
SHA2-256(grafmin-user-guide-us.pdf)= 42dbbae19e8018d737484ade9d65628120d55dc0661af612b963d955e01ed198