COLLECTING ANNOTATIONS FOR A DOCUMENT BY AUGMENTING THE DOCUMENT

摘要

Annotation methods and systems for supporting the annotation of documents in the format of a rendering engine are provided. The annotation system allows for the adding of annotations to documents, the displaying of annotations over content of the documents, and the displaying of annotations in an annotation pane. To provide annotation support for a document, the annotation system augments the document with elements including an element with annotation engine code and elements to support the collecting and displaying of annotations. When the rendering engine renders the document, it executes the annotation engine code to effect the collecting and displaying of the annotations.

主权项

1. A method performed by a computing device for annotating a document that is in a format of a rendering engine, the method comprising:
accessing a document with document content and augmented with an annotation-enabling code; under control of a rendering engine,
when executing the annotation-enabling code,
retrieving annotation engine code of an annotation engine; andaugmenting the document with annotation engine code; andwhen executing the annotation engine code,
augmenting the document with overlay content that defines an input area to overlay rendered document content and to receive events relating to annotation;enabling the input area to receive events relating to annotations;when inking events corresponding to submitting ink of an annotation are detected over the input area, storing points corresponding to the locations of the submitted ink within the input area;analyzing the stored points of the annotation to identify anchor content based on the locations of the submitted ink and the location of rendered document content; andassociating the annotation with the anchor content.