Document authentication works through a series of validation checks that scan the document to determine its authenticity. A series of processes are used to determine whether a document is genuine:

• Factors such as photo IDs, stamps, watermarks, QR codes, and fonts are scrutinised for their authenticity. The process also checks that documents are up to date and that they are still valid and up to date.
• Cropping and edge detection to detect mismatches in images, color integrity, front-to-back data correlation, and cross-checks against a vast database of global IDs.
• For written documents, it matches fonts, wording content, stamps, holograms, watermarks, signatures, and cross-checks against an extensive database to detect plagiarised content.

Technologies Involved In Document Authentication:

OCR (optical character recognition) is used to convert an image of text on a scanned document into a machine-readable text format. It saves time by processing large volumes of paperwork into a single format while also eliminating the space needed to store physical documents.

MRZ (machine-readable zone) is a section within an identity document (specifically passports) that contains the holder’s personal data. Almost every country’s official travel or identity documents contain a piece of encoded confidential information. MRZ-based documents are referred to as Machine readable documents because only a machine can read the data they contain.