LYNX.io is a startup in the field of information security. Lynx.io developed an innovative product that provides a technology-based solution to secure both electronic an paper-based documents with a digital signature using a hardware-enhanced model based on a biometrical IoT signing device, - the Lynx stamp.The entire cryptographic process is conducted on the Lynx handheld signing device which generates a digital signature based on the encrypted document's content, signer's ID, event's date, and location.This digital signature, together with the URL to the cloud storage, is incorporated into a QR code. The QR code is printed on the physical document thanks to the integrated printer in the LYNX stamp, or transferred to the app to be signed electronically.