① Search for "art signature with transparent background" on the Internet. After opening the webpage, select "Commercial Art Logo" and then operate as required.

② Open the PS software, insert the artistic signature picture with transparent background, and adjust the size and position.

In traditional commercial transactions, in order to ensure the security and authenticity of the transaction, it is necessary to have a written contract or official document signed or sealed by the parties or the person in charge, so that both parties can identify who signed the contract and ensure that the signer or seal recognizes the contents of the contract, thus making the contract legally valid. In the virtual world of e-commerce, contracts or documents are expressed and transmitted in the form of electronic documents. In electronic documents, the traditional handwritten signature and seal can not be carried out, and it must be replaced by technical means.