Mark Sign: eSign & Validate

Sign documents with qualified eSignatures. Legally binding documents throughout the EU. Secure and easy-to-use document signing process. • Sign eDocuments with a qualified electronic signature. • Check the validity of a signed eDocument. • Single account for teams. Many ways to verify your identity. Sign documents from anywhere in the world using your Smart-ID, Mobile-ID, LT ID or ZealiD. Legally binding signatures. Under the EU eIDAS regulation, a qualified electronic signature has the same legal effect as a handwritten one.