An information processing apparatus includes processors and memories to store a plurality of instructions which cause the processors to store, in the memories, usage authority information associating, for each of users, user information identifying the user with authority information. The authority information associates, for each of image forming apparatuses, device information identifying the image forming apparatus with function information indicating function of the image forming apparatus allowed to be executed or restricted from being executed. Based on success of an authentication process for a login request from the user to the image forming apparatus, The processor specifies the function information corresponding to the device information of the image forming apparatus as the login request source, using the usage authority information corresponding to the user information of the user, creates response information set with the specified function information, and sends the created response information to the image forming apparatus.

A method for creating a garbled PDF text comprises the following steps: upon creating a PDF document or saving the PDF document as a new document, embedding a PDF font in the created or newly saved PDF document (S110); using a random encoding method to change an embedded PDF font code such that it maps to a Unicode dictionary (S120); and converting codes in text content of the PDF document into random codes (S130).

According to an embodiment, an image processing apparatus includes a read image processor, a write image processor, an image path selector, and a communication controller. The read image processor is configured to execute an image processing module corresponding to read of image data. The write image processor is configured to execute an image processing module corresponding to write of image data. The image path selector is configured to select a path for transmitting image data output from the image processing modules corresponding to read and write of image data to an external apparatus, and select a path for inputting image data processed by the external apparatus to an image processing module in a subsequent stage. The communication controller is configured to control transmission and reception of image data to and from the external apparatus.

A combination of a latent-image pattern which forms a latent-image part and a background pattern that forms a background-image part is determined so that the latent-image part and background-image part have equal print densities. The determined latent-image pattern and background pattern, color information used to determine a color of the copy-forgery-inhibited pattern image, input image information as an image to be processed, copy-forgery-inhibited pattern basic information used to designate the latent-image part and background-image part, and camouflage region designation image information used to designate a camouflage region are input. A copy-forgery-inhibited pattern image is generated on the basis of the input information.

An image forming apparatus including applications and system side software for providing system side services to the applications is provided, in which the image forming apparatus includes: an authentication module for displaying an authentication screen on an operation panel of the image forming apparatus, wherein the authentication module allows the image forming apparatus to display a screen for using the image forming apparatus instead of the authentication screen if authentication data input from the authentication screen satisfies an authentication condition, and wherein the authentication module is provided in the image forming apparatus separately from the system side software.

An image formation system includes: an encoded image generation device including a first processor that generates print data from manuscript data, sets security information for controlling a print mode of the print data, and generates an encoded image from the print data and the security information; and an image formation device including a second processor that inputs the encoded image, decodes the print data and the security data from the input encoded image, determines whether an output of the decoded print data is available in accordance with the decoded security information, and outputs the decoded print data when it is determined that the output of the print data is available.

A combination of a latent-image pattern which forms a latent-image part and a background pattern that forms a background-image part is determined so that the latent-image part and background-image part have equal print densities. The determined latent-image pattern and background pattern, color information used to determine a color of the copy-forgery-inhibited pattern image, input image information as an image to be processed, copy-forgery-inhibited pattern basic information used to designate the latent-image part and background-image part, and camouflage region designation image information used to designate a camouflage region are input. A copy-forgery-inhibited pattern image is generated on the basis of the input information.

A method including generating first images and/or text on a plurality of items, printing a plurality of unique identifiers, each unique identifier being printed over the images and/or text on a corresponding one of the plurality of items, capturing a plurality of second images, each second image including a corresponding one of the plurality of unique identifiers, and storing the captured plurality of second images in a computer readable memory.

In a case of a first function of carrying out a cooperative processing in accordance with an instruction from a user of a multifunction peripheral (10), the user is set as an execution user. In a case of a second function of carrying out a cooperative processing in accordance with an instruction from an application, a user instructed by the application is set as an execution user. Further, in a case where an execution user of a cooperative processing carried out using the first function and an execution user of a cooperative processing carried out using the second function are identical, use history information of the execution user is managed as use history information of a single user. This makes it possible to appropriately manage use history information of a cooperative processing.

A computing system for tampering detection for digital images is disclosed. The computing system uses a LTI filter to filter time series data representing images in one or both of two videos and/or a still image of a live photo captured by a camera. A causal relationship in time existed between the images in the two videos and the still image when they were captured by the camera. The computing system determines whether the filtered output data representing an image by using the LTI filter is causal. If the computing system determines that the filtered output data representing the image is non-causal, it asserts a signal indicating that the image has been modified after it was captured.