(Seals) are usually divided into official seals and private seals, and different seals use different fonts. As for the Chinese characters used in the official seal, according to the provisions of the "Regulations of the State Council on the Management of Seals of State Administrative Agencies and Enterprises and Public Institutions and Social Organizations (Document Number: Guofa [1999] No. 25)" "17. The Chinese characters printed on the seal should be used The simplified characters announced by the State Council are in Song style. The Chinese characters for private seals, depending on the content, purpose, and shape of the seal, can be used in official seal fonts: official script, regular script, Wei stele, Song style, Xingkai, Libian, etc.; office flat seal fonts: Kaiti, Libian, Zhongli, imitation Song Dynasty, etc.; artistic seal fonts: seal script, official script, Xingkai, Libian, etc. But seal-engraved seals are generally seal script and Han seal. In principle, the font used for a personal signature seal is highly arbitrary, while the font used for a legal person's private seal is more fixed and uses a computer output font.