Paper e-Sign, a technology that has been developed by Secure Edge to protect documents from falsification. It is a graphic seal that, when used on printed documents, makes them impossible to alter in any way Based on 2D-Plus™ is the 2D graphic codification process itself, which, unlike other codes, allows the encryption of enough information to create an unalterable file of any kind of data; for example: biometric, retinal, and photographic data as well as digital fingerprints and address and birth data.