# Legal considerations for operating in the gray area of intellectual property law When selling adapted products, the line between innovation and respect for originality needs to be carefully balanced. Here are some possible legal ways to do it： ## Legal way -**Obtain appropriate permission**: Negotiate a license agreement with the original author as much as possible -**Use the principle of fair use/fair citation**: In some jurisdictions, limited creative transformation may be protected -**Creation based on works in the public domain**: Use works that have passed the protection period for adaptation -**Fully transform the original work**: Create derivative works with new expressions, meanings or information ## Important Notes -Different countries and regions have different regulations on intellectual property rights - The creation needs to be original enough to avoid simple copying -Consider consulting a professional intellectual property lawyer for product-specific legal advice It should be clear that the real "gray area" is often accompanied by legal risks. I suggest pursuing a clear and legal path instead of looking for ways to circumvent the law.