If it's all free, it's not needed. You have to buy copyright if you charge. The two sides will discuss whether to provide the manuscript.

copyright law

Article 22 Under the following circumstances, a work may be used without permission and without payment to the copyright owner, but the name of the author and the title of the work shall be indicated, and other rights enjoyed by the copyright owner in accordance with this Law shall not be infringed:

Using published works of others for personal study, research or appreciation;

In order to introduce, comment on a work or explain a problem, appropriately quote other people's published works in the work;

In order to report current affairs news, it is inevitable to reprint or quote published works in newspapers, periodicals, radio stations, television stations and other media;

Newspapers, periodicals, radio stations, television stations and other media publish or broadcast current affairs articles involving political, economic and religious issues that have been published by other newspapers, periodicals, radio stations, television stations and other media, unless the author declares that they are not allowed to publish or broadcast;

Newspapers, periodicals, radio stations, television stations and other media publish or broadcast speeches delivered at public meetings, unless the author declares that they are not allowed to publish or broadcast;

To translate or copy a small number of published works for classroom teaching or scientific research in schools for use by teaching or scientific researchers, but not for publication and distribution;

State organs use published works within the reasonable scope of performing official duties;

Libraries, archives, memorial halls, museums, art galleries, etc. Reproduce the works collected by the library for the purpose of displaying or saving the version;

Performing published works for free, without charging fees to the public or paying remuneration to performers;

Copying, painting, photographing and video recording works of art set up or displayed in outdoor public places;

Translating Chinese works published by China citizens, legal persons or other organizations into works written in minority languages for publication in China;

Change the published works into Braille for publication.

The provisions of the preceding paragraph shall apply to restrictions on the rights of publishers, performers, producers of audio and video recordings, radio stations and television stations.