A word information in a document printed on paper etc. may be specified easily. Especially, it enables to specify easily and correctly from the word information input partially. In one example, an information specification system specifying an arbitrary word information in a document, includes an information specification apparatus to select a specified candidate word information. The apparatus has document specification mechanism to input a specification information for specifying the document, and a character input mechanism to input the word information. The word information is searched in the specified document by using the word information which is partially input by the character input mechanism to select the specified candidate word information.