After the patent application documents are submitted, can they be modified?

according to the provisions of the patent law, the applicant can modify the patent application documents after they are submitted. After the submission of the patent application documents, can it be modified? An applicant for a patent for invention may make an amendment to his application for a patent for invention on his own initiative within three months after making a request for substantive examination or issuing a notice in China National Intellectual Property Administration that the application for a patent for invention has entered the substantive examination stage. An applicant for a patent for utility model or design may voluntarily modify his application documents within two months from the date of patent application. The modification of the application documents for patents for inventions and utility models shall not exceed the scope recorded in the original specification and claims, and the modification of the application documents for patents for designs shall not exceed the scope indicated by the original pictures or photographs.