The primary purpose of software documentation is to provide clear and comprehensive information about a software product, covering aspects such as installation, usage, and troubleshooting. This documentation serves as a vital resource for developers, end-users, and stakeholders, facilitating a deeper understanding of the software's functionality and features. Proper documentation aids in knowledge transfer, improves collaboration, and enhances overall user experience. Additionally, it serves to reduce the need for extensive training and support, ultimately saving time and resources for both developers and users.