yes.

1. legal operation: the official seal is one of the important documents to prove the legal operation of an enterprise. When handling business licenses, tax registration certificates and other documents, it is necessary to submit the official seal to prove the legitimacy of the enterprise. Therefore, if a private restaurant wants to operate legally, it is necessary to engrave the official seal.

2. Contract signing: When private restaurants sign contracts with customers and suppliers, they need to affix their official seals to prove the legality and authenticity of the contracts, so the official seals are also one of the important tools for contract signing.