Annotation sharing method, annotation sharing apparatus, and annotation sharing program

摘要

According to an embodiment, an annotation sharing method includes outputting a content; acquiring an annotation positioned in the content; calculating a position of the annotation in the content using information, that is related to the content and is usable for specifying the position of the annotation in the content, without using a body of the content; and storing the calculated position and the annotation in association with each other and in a readable manner.