Methods of preparing extended content labels from prefabricated adhesive assemblies are described. The methods do not require delamination or relamination of the prefabricated adhesive assemblies. The prefabricated adhesive assemblies include a transparent face layer and an adhesive layer sensitive to radiant energy. Extended content printing is applied to a front face of the face layer. A mask is positioned between the adhesive layer and a radiant energy source. Radiant energy not blocked by the mask reduces the adhesion of irradiated portions of the adhesive layer. A floodcoat is applied over the extended content indicia, and front side indicia is applied over the floodcoat and is visible through the face layer and adhesive layer from a back side of the face layer.