A radiographic imaging apparatus includes: a radiation detection array configured to store charges to acquire an image signal an output unit configured to output radiation image data based on the image signal to an external apparatus a detection unit configured to detect an imaging mode changeover instruction and a control unit configured to, when the detection unit detects an imaging mode changeover instruction during one unit of imaging processing including the charge storage and the charge-based radiation image data output to an external apparatus, control whether the imaging processing is to be interrupted, based on an operating state of the radiographic imaging apparatus.