A system and method are disclosed for rendering printed documents tamper evident. Examples render classes of documents tamper evident with cryptographic level security or detect tampering events, where such security was previously unavailable, for example, in documents printed using common printers without special paper or ink. Examples enable proving the date of document content without the need for expensive third party archival, including documents held, since their creation, entirely in secrecy or in untrustworthy environments, such as on easily-altered, publicly-accessible internet sites. Examples can use a document's prior registration date in a blockchain to establish a no-later than date-of-existence for that document. Examples can extend the useful life of integrity verification algorithms, such as hash functions, even when applied to binary executable files. Examples can efficiently identify whether multiple document versions are substantially similar, even if they are not identical, thus potentially reducing storage space requirements.

A printed document client receives a first print stream for a soft copy document, determines whether one or more conditions for adding a graphical symbol to the printed document are satisfied, and when the one or more conditions for adding the graphical symbol to the printed document are satisfied, adds the graphical symbol to the first print stream to generate a second print stream that includes the graphical symbol, and outputs the second print stream to a printer so the graphical symbol is printed on the printed document corresponding to the soft copy document. The printed document can be a hard copy document or a soft copy document generated from the second print stream.

A printing apparatus capable of adding number information differing from copy set to copy set, to a printing target image includes a judging unit configured to judge whether to add user information indicating a current user to a printing target image, and a determination unit configured to determine a position to which the number information is to be added, based on a result of the judgment performed by the judging unit.

A document determination system includes a server device that stores identification information in association with document information, a printer that prints a document image corresponding to the document information and a code image indicating the identification information on a print medium to generate a normal printed matter, and a scanner that reads a print image printed on a printed matter including the normal printed matter and a copied printed matter obtained by copying the normal printed matter. The printer prints the code image in a preset end region of the print medium. The server device determines whether the printed matter is the normal printed matter based on the code image included in the print image read by the scanner.

Provided an information processing apparatus including a first display unit that displays a first menu screen, which includes a menu item for calling a first function of an information processing apparatus, on a display unit, a second display unit that displays a second menu screen, which includes a menu item for calling a second function for using the information processing apparatus for a specific use, on the display unit, and a control unit that controls which of the first menu screen and the second menu screen is preferentially displayed.

A system and method are disclosed for rendering published documents tamper evident. Embodiments render classes of documents tamper evident with cryptographic level security or detect tampering events, where such security was previously unavailable, for example, in documents printed using common printers without special paper or ink. Embodiments enable proving the date of document content without the need for expensive third party archival, including documents held, since their creation, entirely in secrecy or in untrustworthy environments, such as on easily-altered, publicly-accessible internet sites. Embodiments can use a document's prior registration date in a blockchain to establish a no-later than date-of-existence for that document. Embodiments can extend the useful life of integrity verification algorithms, such as hash functions, even when applied to binary executable files. Embodiments can efficiently identify whether multiple document versions are substantially similar, even if they are not identical, thus potentially reducing storage space requirements.

A method of verifying an authenticity of a printed item includes: photographing the printed item to obtain a photographic image of the printed item, retrieving reference data of the printed item, the reference data including a reference image of the printed item, determining a test noise parameter from the photographic image of the printed item, determining a reference noise parameter from the reference image, comparing the test noise parameter of the photographic image of the printed item to the reference noise parameter of the reference image, and determining an authenticity of the printed item from a result of the comparing. The determining the authenticity of the printed item from the result of the comparing may include establishing from the reference noise parameter of the reference image and the test noise parameter of the printed item.

An image processing apparatus which is capable of merging character strings with an original image without causing garbling. A first storage unit stores first character codes corresponding to a first language in accordance with administrator's input. A second storage unit stores a second character codes corresponding to a second character in accordance with login user's input. A reading unit reads an original image in accordance with login user's input. A generation unit generates a first character image corresponding to the first language on the basis of the first character codes and generates a second character image corresponding to the second language on the basis of the second character codes. A printing unit carries out a printing process based on the first character image, the second character image and the original image.

An information processing apparatus capable of communicating with an image forming apparatus via a network, the image forming apparatus being capable of communicating via facsimile, includes a second controller circuit that receives image data transmitted via facsimile, facsimile transmission information including information of one or more items about the facsimile transmission, and additional information including additional information of one or more items about the image data, in association with each other, from the image forming apparatus via the network, and determines a storage area to store the image data based on information of at least one item out of the information of the one or more items included in the facsimile transmission information and/or based on information of at least one item out of the information of the one or more items included in the additional information.

A method of verifying an authenticity of a printed item includes: photographing the printed item to obtain a photographic image of the printed item, retrieving reference data of the printed item, the reference data including a reference image of the printed item, determining a test noise parameter from the photographic image of the printed item, determining a reference noise parameter from the reference image, comparing the test noise parameter of the photographic image of the printed item to the reference noise parameter of the reference image, and determining an authenticity of the printed item from a result of the comparing. The determining the authenticity of the printed item from the result of the comparing may include establishing from the reference noise parameter of the reference image and the test noise parameter of the printed item.