Online Digital Signature Authentication in Las Rozas

Yes, it has exactly the same legal validity. Spanish legislation recognizes digital signature authentication performed by a notary with identical legal effects to traditional in-person authentication. The certified document has full effectiveness before any organization, public administration, or court.

You can authenticate a wide variety of documents:

• Commercial and mercantile contracts
• General or specific powers of attorney
• Corporate agreements and meeting minutes
• Personal documentation and authorizations
• Employment and confidentiality contracts
• Documents intended for public administrations

The notary verifies in each case that the document meets the necessary authenticity and legal security requirements.

You need a valid digital certificate or an officially recognized electronic signature tool. The most common ones are the electronic ID card, FNMT certificates, or qualified electronic signature systems. At Las Rozas Notary Office, we will guide you on the most suitable method for your case and help you set it up if necessary.

The complete process is usually completed within 24-48 business hours from when we receive your documentation. Once your identity and signature authenticity are verified, the notarial certification is issued immediately. In urgent cases, we can expedite the procedure so you receive it as quickly as possible.

The cost depends on the type and number of documents to be authenticated. Notarial fees are regulated by law and are transparent. Contact us to receive a detailed no-obligation quote according to your specific needs. The online service has no additional costs compared to in-person authentication.

Yes, we can authenticate digital signatures on documents signed abroad, provided they meet the requirements for recognized electronic signatures. This is especially useful for companies with international operations or people residing outside Spain who need documentation valid in Spanish territory.

Signature authentication certifies that an electronic signature already made belongs to a specific person. The notarial electronic signature is when the notary directly intervenes in the act of signing the document. Both services grant legal validity but are used in different contexts depending on the needs of the procedure.

Absolutely. We use encrypted transmission systems and the highest level security protocols that guarantee the confidentiality of your documents. Additionally, as a notary office, we are subject to the strictest professional secrecy. All documentation is managed in accordance with data protection regulations (GDPR) with maximum privacy guarantees.

If we detect any problem with the digital signature during verification, we will contact you immediately for guidance. It could be due to an expired certificate, an unrecognized electronic signature, or technical problems. We will help you resolve it and, if necessary, show you how to correctly complete the signature to proceed with the authentication.

Of course. Being a completely online service, you can access it from anywhere in Spain or even from abroad. Your geographic location does not matter: the process is carried out entirely digitally and you receive the notarial certification without the need for travel.