Authenticate Your Digital Signature Without Leaving Home

It is a notarial act through which a notary certifies that an electronic signature legally belongs to the person who made it. The notary verifies your identity, checks the validity of your digital certificate, and issues a certificate that provides public attestation of the authenticity of your signature.

This process transforms a simple electronic signature into legal proof with full evidentiary validity, recognized by courts and official bodies.

Yes, absolutely. According to Law 6/2020 and the eIDAS Regulation, digital signature authentication performed by a notary has full legal validity throughout Spain and the European Union.

The electronic notarial certificate has the same legal effects as a document signed in person before a notary.

You will need:

• The document to be signed in PDF or compatible format
• Your qualified digital certificate (electronic ID, FNMT certificate, Camerfirma, or other recognized)
• Valid identity document (ID, NIE, or passport)
• A brief description of the document content if requested by the notary

Yes, you can complete the entire process online from anywhere in the world. You only need an internet connection, your valid digital certificate, and a device for the identification video call with the notary.

Many clients residing abroad use this service to sign documents in Spain without having to travel.

You can authenticate most private documents such as:

• Lease and purchase agreements
• Powers of attorney
• Authorizations and consents
• Sworn declarations
• Commercial agreements
• Official communications

Excluded are those documents that by law require mandatory physical presence, such as wills or certain family law acts.

The complete process is usually completed in 24 to 48 hours:

• Initial request: 5 minutes
• Signing with digital certificate: 10-15 minutes
• Identification video call: 15 minutes
• Issuance of notarial certificate: 24-48 hours

In urgent cases, consult with the notary about the possibility of expediting the procedure.

No. The process is designed to be simple and intuitive. If you already have a digital certificate, you only need to know how to use it to sign (similar to signing on the Tax Agency or Social Security website).

The notary will guide you step by step and resolve any technical questions during the process.

Yes, you can sign from your smartphone or tablet as long as:

• Your digital certificate is compatible with mobile devices
• The device meets the necessary security requirements
• You have the necessary application installed to use your certificate

Many users use the electronic ID with NFC reader or cloud certificates accessible from mobile.

The cost varies depending on the complexity of the document and number of signers, but it is usually more economical than the in-person procedure by eliminating travel.

Request a no-obligation quote before starting the procedure. The notary will tell you the exact price according to your specific case, with no hidden costs.

If you do not have a digital certificate, you can obtain one for free at:

• FNMT: Online request and in-person collection at a registration office
• Electronic ID: If your ID is the latest generation, it already includes a certificate
• Cloud certificates: Providers like Camerfirma offer certificates accessible from any device

The obtaining process usually takes between 24 hours and one week depending on the chosen option.

Yes, in countries that recognize the eIDAS Regulation (all European Union countries) or with which Spain has agreements for recognizing qualified digital signatures.

For use in countries outside the EU, consult with the notary about the possibility of apostilling the electronic document to give it international validity.

The digital signature with a qualified certificate includes a timestamp and cryptographic hash that ensures any modification of the document after signing is detectable.

Additionally, the notary verifies the integrity of the document before authenticating it and archives a copy in their electronic protocol, providing unalterable proof.