The present invention teaches techniques for creating scans of documents that are both secure from tamper and that are assured of satisfactory image quality. In particular, a method of producing an assured document is disclosed wherein the documents digital signature is combined with the scan quality in a secure way.

 
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< System and method for making available identical random data to seperate and remote parties

< Electronic forms including digital watermarking

> Multiple transform utilization and application for secure digital watermarking

> Image processing device, image processing method thereof, computer program, and computer-readable storage medium
~ 00601