1. A computer-implemented method of providing a media presentation associated with a rendered document, the method comprising: optically or acoustically capturing a portion of the rendered document containing human-readable text using a portable data capture device; generating a digest of the captured portion based at least in part on content of the text of the captured portion using the portable data capture device; locating a document identifier associated with an electronic counterpart to the rendered document based at least in part on the digest of the captured portion; sending an enhancement package request including the document identifier to a media server; receiving from the media server an enhancement package associated with the document identifier, wherein the enhancement package includes multiple media presentations associated with multiple words of the rendered document, wherein each word of the multiple words is associated with a respective media presentation of the multiple media presentations; optically or acoustically capturing another portion of the rendered document containing human-readable text using the portable data capture device; locating within the enhancement package a media presentation associated with one or more identified words within the another captured portion; and presenting the associated media presentation using a display or speaker of the portable data capture device.