If the adaptation involves publication, it is not illegal to obtain permission from the copyright owner and the copyright owner of the original work.

For a work created jointly by two or more persons, the copyright shall be shared by the co-authors. People who don't participate in the creation can't be co-authors.

Where a cooperative work can be used alone, the authors may enjoy the copyright of their respective parts, but the exercise of copyright shall not infringe upon the copyright of the cooperative work as a whole.

If a work is composed of several works, fragments of works or materials that do not constitute a work, and its content selection or arrangement reflects originality, the copyright of the compiled work shall be enjoyed by the assembler, but the exercise of copyright shall not infringe upon the copyright of the original work.

Extended data:

Copyright law of the people's Republic of China

Chapter V Legal Responsibility and Law Enforcement Measures

Article 47 Anyone who commits one of the following acts of infringement shall bear civil liabilities such as stopping the infringement, eliminating the influence, making an apology and compensating for losses according to the circumstances:

(1) publishing his work without the permission of the copyright owner;

(2) publishing a work created in cooperation with others as a work created by oneself without the permission of a co-author;

(three) did not participate in the creation, in order to seek personal fame and fortune, signed other people's works;

(4) distorting or tampering with other people's works;

(5) Plagiarizing other people's works;

(6) Using a work by means of exhibition, filming or adaptation, translation or annotation without the permission of the copyright owner. Unless otherwise provided for in this law;

(seven) the use of another person's work, which should be paid but not paid;

(8) Renting works or audio-visual products without the permission of the copyright owner or copyright-related obligee of film works and works created by similar film production methods, computer software and audio-visual products, except as otherwise provided by this Law;

(9) Using the layout design of books and periodicals published by publishers without their permission;

(10) Live broadcast or public dissemination of a live performance or recording of a performance without the permission of the performer;

(eleven) other acts of infringement of copyright and copyright-related rights and interests.

Baidu Encyclopedia-People's Republic of China (PRC) Copyright Law