A collator (10) collates folded signatures (30). A conveyor (12) of the collator (10) moves a plurality of support saddles (20). The support saddles (20) receive and support the signatures (30) with their folds extending in a direction perpendicular to a movement direction (18) of the support saddles. A feed mechanism (40) feeds a signature (30) down toward a respective support saddle (20) as the conveyor (12) moves the support saddles. The signature (30) falls vertically toward the respective support saddle (20). An air handler (66) draws air down, vertically relative to the respective support saddle (20) to minimize air resistance acting against the signature (30) being fed to the respective support saddle (20).