A printed document manager manages printed documents and is separate from a Document Management System (DMS) that manages electronic soft copy documents also known as source documents. Documents in a DMS repository are registered in a postmark registry by a registration agent. When a document that is registered in the postmark registry is printed, a graphical symbol referred to as a “postmark” is generated and inserted into the print stream so the postmark is printed on the hard copy of the document. The printed document is logged in a printed document store along with metadata associated with the printed document. The postmark on the printed document can be used for one or more purposes, such as to determine whether the printed document can be shredded after use and to determine whether the printed document is current.

A controller of an image processing apparatus performs one or both of an enlargement process and a conversion process when a coded image in which information is coded is included in the image data. The enlargement process is a process of pasting an enlarged coded image instead of the coded image on the image data. The conversion process is a process of pasting decoded information instead of the coded image.

A system includes an image forming apparatus, a first document server apparatus, and a key server apparatus, the image forming apparatus being configured to determine whether document data is private or public, when the document data is determined to be private, then determine a level accessible to the document data, and transmit level information indicating the level and the document data to the first document server apparatus, the first document server apparatus being configured to receive the level information and the document data from the image forming apparatus, generate a document ID for identifying the document data, store the document data in association with the document ID, transmit the document ID to the image forming apparatus, determine an accessible user ID that identifies a user accessible to the document data based on the level information, generate a public key and a private key used to encrypt the document data.

Methods, systems, and storage media for issuing and verifying a secondary cryptographic photo ID are disclosed. Exemplary implementations may: capture, using a scanning component of a printing device, a primary digital image of a primary photo ID; recognize, using a processing component of the printing device, alphanumeric information in the captured primary digital image; encrypt, using the processing component of the printing device, the recognized alphanumeric information; generate, using the processing component of the printing device, a digital watermark comprising the encrypted recognized alphanumeric information; recognize, using the processing component of the printing device, a photograph in the primary digital image; generate, using the processing component of the printing device, a secondary digital image comprising the recognized photograph and the generated digital watermark; and print, using a printing component of the printing device, a secondary photo ID comprising the secondary digital image.

Various embodiments set forth systems and techniques for securing media content capture capabilities on a device. The techniques include receiving a frame of a media content item; determining whether the frame of the media content item is signed based on an analysis of one or more pixels of the frame; and when the media content is signed, removing one or more restrictions on one or more functions on the device based on whether the one or more pixels on the frame meet one or more conditions, wherein the one or more functions enable the device to perform one or more operations on the frame of the media content item.

An image forming apparatus generates embedded information for uniquely identifying a page, for each page of a document, prints the document while embedding the embedded information into the document, and registers a set of pieces of the embedded information in a blockchain service. The image forming apparatus thereby verifies whether the printed product is a correct printed product.

In some examples, a host device comprises a network interface and a processor. The processor is to, in response to a request to share content with a remote device, display the content in a graphical user interface. The content is a video. The processor is to generate an image of the content. The image is a frame of the video. The processor is to generate a first representation of the image, receive second and third representations of the image via the network interface, determine a first similarity between the first representation and the second representation, determine a second similarity between the first representation and the third representation, compare the first similarity to a threshold, compare the second similarity to the threshold, and indicate whether the content is successfully shared with the remote device based on the comparison of the first similarity to the threshold and the comparison of the second similarity to the threshold.

Apparatuses, methods, and systems are disclosed for transmitting and/or receiving an indication of feedback. One apparatus (200) includes a transmitter (210) that transmits (702) feedback information. The feedback information corresponds to first data. The apparatus (200) includes a receiver (212) that receives (704) a signal indicating whether the feedback information is received and receives (706) second data. The apparatus (200) includes a processor (202) that determines (708), based on the feedback information and the signal, whether the second data is a complete retransmission of the first data or a partial retransmission of the first data.

This disclosure relates to advanced signal processing technology including signal encoding and image processing. One implementation describes an encoding system including a masking module. The masking module scales or eliminates signal encoding adjustments based on an image's luminance or chrominance values. Of course, other implementations, combinations and claims are also provided.

A system includes an image forming apparatus, a first document server apparatus, and a key server apparatus, the image forming apparatus being configured to determine whether document data is private or public, when the document data is determined to be private, then determine a level accessible to the document data, and transmit level information indicating the level and the document data to the first document server apparatus, the first document server apparatus being configured to receive the level information and the document data from the image forming apparatus, generate a document ID for identifying the document data, store the document data in association with the document ID, transmit the document ID to the image forming apparatus, determine an accessible user ID that identifies a user accessible to the document data based on the level information, generate a public key and a private key used to encrypt the document data.