Systems, apparatus and methods for implementing transaction applications using a handheld document data capture device are described herein. The handheld device captures information from a rendered document. The captured information is processed to identify an electronic document corresponding to the rendered document. Information captured from the rendered document by the handheld capture device is used to perform a transaction. In one embodiment, a portable scanner is used to select items from a catalog. Information scanned from the catalog is used to identify the catalog, the items to be purchased, and complete an order via the Internet.