From pre-folded paper and thin booklets, to invoicing statements and reply envelopes, the FPi 2700 has you covered. The knife fold technology enables the FPi 2700 to accurately fold up to 8 sheets at a time. The FPi 2700 collates and aligns documents before folding. The smart trays can easily process a wide variety of paper textures and sizes. So you can mail differing documents in the same envelope.