Legal analysis: when stamping, you should press the edge seam. The official seal should be evenly covered on the middle seam of two pieces of foldable paper, half of which should be kept as a stub and the other half as a voucher. When verifying, the two halves should be opposite and the official seal should be complete. Every page of the contract should be stamped with a red seal, and the first page and the last page should have words at the same time, not just red circles, and there should be no missing pages in the middle or before and after. The development of contract should be able to restore the riding seal to the original seal. Only in this way can it be a more standardized riding seal and play its role.

Legal basis: Article 493 of the Civil Code of People's Republic of China (PRC). Where the parties conclude a contract in the form of a contract, the place where the contract is established is the place where the parties finally sign, seal or print, unless otherwise agreed by the parties.