1. Generally, the paper used for printing calligraphy and painting products is not as special as that used for calligraphy and painting. He used rice paper, bamboo paper and wool paper. Printing paper generally uses thick paper, smooth paper, and even modern printing paper that people can see.

2. The ink of printed matter is not as smooth and free as calligraphy and painting. If you rub it back and forth by hand, the ink of printed matter will change color on your hand.

3. The simple and practical identification method is: smell with your nose. Printed matter does not smell of ink, and some only smell of ink or tasteless.

4. Zoom in 20 times with the magnifying glass of 10 to see if the place where the text gradually changes is made up of many ink dots. The same is true of Chinese painting. Let's see if there are many different ink dots, which the printing industry calls dots. Because printing needs screening to achieve multi-level painting, such as from deep to shallow, from bright to dark, these need dot to achieve.

5. There is also a kind of overprinted calligraphy and painting art, but it is marked in the art shop. It is also an art in itself and has high value.

6. If you really don't understand, let people in the industry have a look, find experts, visit painting and calligraphy shops and museums ...