Provided is a transporting device including: upstream-side upper and lower belts 19 and 29 that transport a signature 1; downstream-side upper and lower belts 39 and 49 that communicate with the upstream-side upper and lower belts 19 and 29, that run at a slower speed than that of the upstream-side upper and lower belts 19 and 29, and that receive and transports the signature 1 from the upstream-side upper and lower belts 19 and 29; and slowdown wheels 53 including stoppers 53a that come out on the transporting path of the signature 1 between the downstream-side upper and lower belts 39 and 49 so as to abut on the forward edge portion of the signature 1 in the transporting direction thereof, the transporting device provided with pressing cams 61 including pressing surfaces 61a that press the downstream-side lower belt 49 towards the downstream-side upper belt 39 while the stoppers 53a of the slowdown wheels 53 abut on the forward edge portion of the signature 1 in the transporting direction thereof.