official seals are all circular, and the style and scale of special seals can be customized, but the scale should not exceed the official seal. The official seal should use the legal name of the institution, which is too many words and difficult to engrave clearly, and can be abbreviated in general. The seal diameter of institutions at the college level is 45mm, that at the departmental level is 42mm, that at the deputy departmental level is 4mm, and that at the departmental level is 38 mm..
party constitution is always circular. The sickle and axe are printed in the center, with a diameter of 4.2cm and a width of .1cm. The names of the party organizations are printed outside the sickle and axe, which circulate from left to right, and the seals are simplified in Song style.
seals are generally one large and one small, one yin and one yang. Name and font size, leisure stamp such as Zhai Ming, etc. are printed in Zhu and Bai respectively. The shape of the seal is also oval, and it is best to carve it into the name of the study in yangwen. The square seal in yin is engraved with name, font size, etc. When the seal is used, the lower left part of the calligraphy is the name seal and the font size seal. Add a positive article above. Only in this way can it be symmetrical and balanced. Coordinate with calligraphy to form a perfect composition. The shapes of seals are square, rectangular, oval and irregular.
seals can be divided into negative engraving and positive engraving. The negative engraving refers to the removal of words, while the positive engraving refers to the removal of redundant words. At the same time, the seals are respectively negative and positive.
seals are classified into name stamp, leisure stamp and collection stamp, among which the name stamp is necessary for a work, so it is more serious, generally square, and the size cannot exceed the inscription, which is about 2.5cm.