A drying device that dries fabric between a printing apparatus and a receiving device, the printing apparatus being configured to perform printing on a first surface of the fabric, the receiving device being configured to receive the fabric after the fabric passes through the printing apparatus, the drying device comprising: a blowing unit configured to blow out gas to the first surface; and a suctioning unit positioned on a side close to a second surface of the fabric in a blowing direction in which the gas is blown out from the blowing unit, and configured to suction the gas, wherein the blowing unit blows out the gas to the fabric in a state where the second surface is supported by a support member in at least one of an upstream position and a downstream position, the upstream position being a position upstream of the blowing unit and the suctioning unit in a transport direction in which the fabric is transported and the downstream position being a position downstream of the blowing unit and the suctioning unit in the transport direction, and the blowing direction of the gas is directed downstream in the transport direction; wherein the drying device further comprises a displacement detector configured to detect displacement, of the fabric, caused by at least one of blowing out the gas from the blowing unit or suctioning the gas by the suctioning unit, characterized in that output of the blowing unit and output of the suctioning unit are controllable based on a result of the detection by the displacement detector. the printing apparatus being configured to perform printing on a first surface of the fabric, the receiving device being configured to receive the fabric after the fabric passes through the printing apparatus, the drying device comprising: a blowing unit configured to blow out gas to the first surface; and a suctioning unit positioned on a side close to a second surface of the fabric in a blowing direction in which the gas is blown out from the blowing unit, and configured to suction the gas, wherein the blowing unit blows out the gas to the fabric in a state where the second surface is supported by a support member in at least one of an upstream position and a downstream position, the upstream position being a position upstream of the blowing unit and the suctioning unit in a transport direction in which the fabric is transported and the downstream position being a position downstream of the blowing unit and the suctioning unit in the transport direction, and the blowing direction of the gas is directed downstream in the transport direction; wherein the drying device further comprises a displacement detector configured to detect displacement, of the fabric, caused by at least one of blowing out the gas from the blowing unit or suctioning the gas by the suctioning unit, characterized in that output of the blowing unit and output of the suctioning unit are controllable based on a result of the detection by the displacement detector. a blowing unit configured to blow out gas to the first surface; and a suctioning unit positioned on a side close to a second surface of the fabric in a blowing direction in which the gas is blown out from the blowing unit, and configured to suction the gas, wherein the blowing unit blows out the gas to the fabric in a state where the second surface is supported by a support member in at least one of an upstream position and a downstream position, the upstream position being a position upstream of the blowing unit and the suctioning unit in a transport direction in which the fabric is transported and the downstream position being a position downstream of the blowing unit and the suctioning unit in the transport direction, and the blowing direction of the gas is directed downstream in the transport direction; wherein the drying device further comprises a displacement detector configured to detect displacement, of the fabric, caused by at least one of blowing out the gas from the blowing unit or suctioning the gas by the suctioning unit, characterized in that output of the blowing unit and output of the suctioning unit are controllable based on a result of the detection by the displacement detector.