Usually, the contents engraved on the corner seal can be aphorisms, epigrams or the name of the restaurant. In calligraphy or painting, the corner seal is used to supplement the picture, adjust the stability and break the flat plate. Opening printing and corner printing are similar to name printing, which can make the picture more colorful, cope with color changes and maintain balance and stability. In the corner printing position, some meaningful words or symbols can be engraved to express the theme of the work or the author's intention. Artists can choose different contents to carve corner prints according to their own needs, so as to enhance the expressive force and uniqueness of their works.