Ebook DRM system and service method to share electronic annotations

摘要

The present invention relates to an e-book DRM system and a service method capable of sharing annotations, and in more detail, an e-book DRM system capable of sharing annotations that supports sharing of written annotations by selecting a part of the e-book text, and It is about the service method. The present invention supports the sharing of annotations added to an e-book between a plurality of different users, providing convenience for sharing annotations for mutual information exchange or discussion on e-books, and When sharing comments by checking whether the specific user has the right to read the e-book for a specific area of the related e-book, and only if the user has the right to read the e-book, it is supported to check the contents of the specific area of the e-book related to the annotation It has the effect of easily preventing the copyright infringement of e-books that may occur in.