Document fraud has become the third largest criminal industry in the world. Whether it is to take advantage of an unauthorized good or service, to flee legal proceedings, or to usurp identities, the motivations of fraudsters are multiple. Fraud involves not only identity documents, but also many other documents, which we call “supporting documents”: invoices, pay slips, bank details, contracts, etc. A significant number of these documents have no integrity measures, so it is easy for some fraudsters, using sophisticated techniques, to modify them without being visible to the naked eye. SmartStamp.io is our solution for document securing. It allows you to generate and affix a 2D-Doc Visible Digital Seal (VDS) in a few seconds, in the form of a 2-dimensional barcode on any document. This VDS then contains the essential information of the document in clear text as well as the hash signed by the issuer, and ensures that the delivered document is authentic and has not been falsified.