The main purpose of a digital rights management (DRM) system is to protect copyrighted content from unauthorized use and distribution. It enables creators and distributors to control access to digital media, limiting the ability of users to copy, share, or modify materials without permission. This technology helps preserve the value of creative works by ensuring that rights holders can enforce their legal rights. DRM systems are widely employed in industries such as music, film, and software to mitigate piracy and enhance revenue.