PROBLEM TO BE SOLVED: To provide an image document managing system, capable of improving the efficiency of the entire reading operation by suppressing a complicated rereading operation, a scanner, a scanner driver, a document format, image document management software and document management software.;SOLUTION: When image data are acquired from an original, the image data are acquired in a plurality of image quality modes and the image data in the plurality of image quality modes are associated to each other in each page to prepare a file. In image data preview, the image of an image quality mode to be displayed is displayed on the basis of attribute information, and when switching is made to an image in a different image quality mode, the selected image quality mode is recorded in the attribute information.;COPYRIGHT: (C)2006,JPO&NCIPI
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