With the rapid development of information technology, great changes have taken place in people's reading habits, and paper books are being replaced by eBooks. Digital annotation tool allows readers to highlight or insert notes into eBooks during the process of reading, which is an important way for readers to interact with book contents, and can significantly improve reading experience. Readium is an open-source framework with a series of high-performance techniques for EPUB parsing, but the annotation mechanism of it performs poorly. In order to improve the annotation function of Readium, thi...
