Reason: The copyright has expired or been waived, so the work is no longer protected by law
- Copyright Has Expired
Under copyright laws in most countries, artistic works enter the Public Domain after a certain period (usually 50–70 years after the creator’s death). Once the copyright expires, the work becomes free for anyone to use. - Creator or Rights Holder Voluntarily Releases It
Some artists or institutions explicitly dedicate their works to the Public Domain (e.g., via CC0 or Public Domain Mark), allowing unrestricted use, including commercial purposes. - Law Promotes Cultural Sharing
The Public Domain system exists to prevent knowledge monopolies and encourage the free distribution of culture. This allows classic works to be reproduced, adapted, and even sold without legal barriers. - No Copyright = No Legal Risk
Since Public Domain works are not protected by copyright, businesses can freely use them in advertising, merchandise, books, and other commercial projects without paying fees or fearing lawsuits.