1. A method for marking an electronic document with a pen, the method comprising: receiving input representing one or more marks on a document image; determining whether a first mark from the one or more marks represents a selection of a persistent selectable area that delineates information in the document image; storing data corresponding to the selection to enable a user in the future to obtain the information in the document image by performing an action with respect to the one or more marks; receiving an indication that the user has selected a second mark from the one or more marks; determining if the second mark selected by the user is associated with an annotated command in response to the indication that the user has selected the second mark from the one or more marks; determining that the annotated command of the second mark is associated with the persistent selectable area from among a plurality of distinct persistent selectable areas in the document image based on the determination of a minimum spatial distances between a first bounding box that encloses the second mark and a second bounding box, from among a plurality of distinct bounding boxes that enclose corresponding distinct persistent selectable areas, that encloses the persistent selectable area; retrieving the information in the document image associated with the persistent selectable area in response to the indication that the user has selected the second mark from the one or more marks and based on the determination of the minimum spatial distance between the first and second bounding boxes; and performing an action associated with the annotated command based on the information in the document image associated with the persistent selectable area, wherein the action associated with the annotated command is at least one of a web search for a subset of data in the persistent selectable area and a definition lookup for a subset of data in the persistent selectable area.