The color of the title page signed by XX is the same as that of the printed signature.

_Zhibizhuo┖Tuo∏┑Mujiaoǎ? 1. The color of the ink is different: take it to a reflective place and look at it. If it is a real signature, the ink will protrude and be insoluble with the paper itself. When printed in a reflective area, the signature is integrated with the paper itself. 2. Rub it with water: if the printed one cannot be rubbed off, if it can be rubbed off, it means it is signed. 3. The strength is different: you can check the unevenness on the paper, and the strength of the autograph is stronger.