To provide an electronic filing device capable of minimizing a data quantity to make it flow on a network and speedily transferring picture information to a terminal device by transferring picture information in a data form corresponding to the function of each terminal device.
Picture information transfer-requested by terminal devices 13 to 15 is read from a picture storage device 2 to be transferred after converting a compressing system and compressing density corresponding to the picture reproducing functions and the display functions of the terminal devices obtained through the network, and picture information after conversion is recorded in a converted picture storing device 8. When a transferring request occurs again after then, whether the picture information exists within the device 8 is investigated and at the time of existing, the picture information is read from the device 8 to be transferred.
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