Superstar digital books adopt PDG digital book format, which is a reading format specially developed for reading, downloading, printing, copyright protection and download billing of digital books. Superstar digital books cover hundreds of thousands of massive digital books in more than 20 categories, including literature, history, philosophy, medicine, tourism and computer. And provide e-book resources for universities, research institutes, government departments and enterprises. Superstar e-books can be read by professional readers and can display the original version of the original book, which is basically the same as paper books.

Through the full-text retrieval function, users can quickly find what they need. In addition, superstar e-books also have a powerful note-taking function, and users can add notes while reading, which is convenient for review and arrangement.