Patent ID: 7986784
Filing Date: 2011-07-26
Classification: H04N

Abstract:
1. An image processing apparatus comprising: an image data generation device arranged to generate image data by reading a document; an image file generation device arranged to generate an image file from the image data generated by the image data generation device, the image file containing a plurality of image data; and an encryption device arranged to encrypt file format information and file structure information contained in the image file generated by the image file generation device while not encrypting the image data contained in the image file; wherein the file structure information includes information indicating stored positions of the plurality of image data contained in the image file; the encryption device encrypts at least information indicating a stored position of the image data of the plurality of image data that is stored at a position closest to a head of the image file and does not encrypt information indicating a stored position of any of the plurality of image data that is stored after the position closest to the head of the image file; and the encryption device generates an encrypted file with information indicating a range of encrypted data added to the head of the image file in which a portion of or all of the data is encrypted.