An imprinting apparatus comprises a first carrier for carrying a flexible stamp having an imprinting pattern and a second carrier movable relative to the first carrier and configured to carry a substrate having a resist layer. The second carrier comprises a chuck and an interface plate over the chuck, wherein the interface plate comprises an array of openings for receiving already-imprinted areas of one side of a substrate while an opposite side of the substrate is to be imprinted. The chuck comprises a fluid passage arrangement for coupling to the openings of the array.