A user initiated unification command can be received from a user interface. The unification command can be associated with a selected portion of a fragmented document. The fragmented document can include more than one discrete documents interconnected by at least one reference. Each reference can be a linkage to content of a document other than the one containing the reference. The selected portion can be associated with one of the discrete documents referred to as a root document. Responsive to the unification command, content represented by the reference can be acquired from the associated discrete documents without presenting the discrete document within a user interface window. The acquired content can be added to the root document.