| 摘要 |
Detection section 22 detects the blank space area in each page for all pages of the document, determining section 23 determines image size for combining a designated stamp image in uniform size in all the pages of that document based on a detection result by detection section 22 . Combining section 24 combines the stamp image determined by determining section 23 in each page of the document. For example, size of the maximum blank space area which can fit within blank space areas of all pages of the document in uniform size, is sought, image combining is carried out with an original size if the original size of the stamp image is not larger than the maximum blank space area size, and the stamp image is combined to be in a reduced size so that it fits within the maximum blank space area size if the original size of the stamp image exceeds the maximum blank space area size.
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