Techniques for determining electronic document information for a paper document. The electronic document information determined for a paper document may include information identifying an electronic document corresponding to the paper document. The electronic document information may also include information identifying a location where the electronic document is stored or a pointer or reference to the electronic document. The electronic document information determined for a paper document may be stored along with identification code information read from an identification tag that is physically associated with the paper document. The electronic document information for a paper document may also be stored in an identification tag that is physically associated with the paper document or physically associated with another paper document generated based upon the paper document.