Abstract: An apparatus for assembling carrier-mounted documents includes a glue station, a folding station and a document feeding station. Adhesive is selectively applied to an elongate sheet of carrier paper having a plurality of transverse perforations. The carrier paper is fed into a moving paddle belt, the paddles striking the carrier paper proximate selected perforations and causing the carrier paper to fold thereon. The paddle belt moves the partially folded carrier paper past a high-speed document feeder where documents are inserted into the folds in the carrier paper and retained there by the previously applied adhesive. The folds in the carrier paper position and align the documents on the carrier paper as they are received from the document feeder. Pin holes along the elongate margins of the carrier paper cooperate with pin chains and pin rollers on the apparatus to time and position the pre-perforated carrier paper with respect to the apparatus.