1. A computer implemented method of identifying a document, the method comprising: obtaining document context data for one or more documents, wherein the document context data includes supplemental information used to identify the document and includes temporal information for one or more previous scans of portions of the one or more documents, the temporal information specifying a time at which each previous scan occurred; receiving data specifying a portion of the document captured using a handheld capture device; identifying a digital document associated with the document using the document context data including the temporal information and the captured portion of the document; identifying, using the captured portion of the document, a location of the captured portion within the digital document; identifying a location-based action to be performed based on the identified location of the captured portion and data specifying one or more location-based actions associated with one or more locations within the digital document; and performing the identified location-based action.