A network scan apparatus includes: a scanner including a scanning unit to scan a document and generate an image file based on the scanned document, a transmitting unit to transmit the image file, and an output selection unit to select whether to output scan file information; an output device, connected to the scanner, via a network, to output the scan file information according to whether the scan file information is selected to be output after a scanning operation; and a host computer connected to the scanner and the output device via the network, to collect the scan file information transmitted from the scanner, and transmit the scan file information to the output device.