System, method, and computer program product for creating subnotes linked to portions of data objects after entering an annotation mode

摘要

Systems, methods, and computer program products for annotating documents are described herein, wherein in some embodiments the documents are immutable. The method operates by enabling a user to place an application in an annotation mode. An annotation is created, and then linked to a portion of an immutable data object. Location information is displayed proximate to the annotation mode location information indicates a location of the linked portion in the data object.