To perform unitary management of an image file and link information and to easily change a link destination without describing link definition informa tion in a program.
A hyperlink defining method refers to a part of the header of an image file, confirms that a mouse coordinate exists within a link definition area and performs jump processing to a page 2 of a defined link destination when it exists within the area if a pointing device such as a mouse selects a specific area 102 on an image 101 that becomes an object by preliminarily describing an image area that defines a link destination and link destination address information in a part of the header of the image file. Also, when a specific area 103 is selected, it refers to a part of the header of the image file and performs jump processing to a page 3 of a defined link destination.
AIKAWA NOBUYUKI
SHIOMI YOSHIHIRO
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