eBurofax ANF AC ® certifies sender, recipient, content and time.

eBurofax ANF AC ®, is a registered trademark intended to the service of delivery of notifications and electronic documents that accredits: integrity of content, identity of the sender and recipient, delivery of notification and attached documents, exact time in which it takes place. It generates legal evidence of the delivery made and, optionally, confirmation of the received notification. Furtermore, it is capable to encrypt and generate self-executing files.

All the service is managed through our PKI platform, a technology entirely developed by ANF AC that incorporates exclusive services such as self-executing encryption, WhatsApp communication, and issuance of qualified validation certificate.

It can be used with all types of computer terminals such as PC, Laptop, Tablet, SmartPhone.

Simple and effective procedure

Just fill out the form, establish your requirements and order the communication. The system automatically generates electronic evidence uniquely identified in each step:

What are this service benefits?

Access from any computer terminal
Legal validity
Delivery and issuance of the receipt right away.
Cost savings
Evidence in
legal procedure
Most competitive
prices in the market
Application Programming Interface (API) and engineering support for developers


Traceability of all processes and evidence obtained is guaranteed.

At each stage of the process, documentary accreditation signed by ANF AC is issued, detailing all the traces and evidence obtained, specifying its origin and guaranteeing integrity through TimeStampig service.

Communication channels available

  • Email
  • SMS
  • Whatsapp, and
  • Opening control through web service

Service Modalities

There is a modality for every need,

  • From the web service panel at
  • Desktop application (suite Critical Access®).
  • API to integrate into the organization´s applications.

What can be certified?

  • Integrity of the notification and the documents attached,
  • sender and recipient identity,
  • the delivery of the notification and documents,
  • the traces issued by the receiving computer systems,
  • the exact time it is performed (qualified TimeStamping):
    • the delivery order by the sender,
    • delivery to the recipient and, optionally
    • Opening of the communication by the recipient.
  • Qualified certificate of signature / electronic seal validation included in the evidence issued (the only one on the market that includes this legal guarantee).

Who issues the evidence of certified delivery?

ANF AC as a Qualified Trust Services Provider (QTSP) assumes responsibility for the service administration by preparing the evidences and certifying them through long validity qualified electronic signature.

Regulatory compliance

Public Key Infrastructure (PKI) platform developed in accordance with Regulation (EU) 910/2014 on electronic identification and trust services for electronic transactions in the internal market, European Telecommunications Standards Institute (ETSI) , ISO 27001, and data protection regulation (General Data Protection Regulation (EU) 679/2016 on the protection of natural persons with regard to the processing of personal data and on the free movement of such data and the Organic Law 15/1999, of December 13, on the Protection of Personal Data). Besides an impact assessment on data protection has been developed.

Judicial appraisals

ANF AC will set judicial experts in the field at your disposal, whom are capable to prepare expert reports, ratify and provide judicial declaration.

Evidence in legal proceedings

All the evidence issued by ANF AC through this online contract service has legal value. All of them are authenticated by ANF AC through a qualified electronic signature/stamp, comparable to the handwritten signature.

We recommend you to exercise maximum caution toward offers that are exclusively committed to the advanced signature claiming complexity of use, both have exactly the same complexity, the only difference is that the supplier must have technology on secure devices to create a QSCD signature, and be able to make use of it. ANF AC provides QSCD technology.

When choosing a signature provider, we recommend you to be informed about the legal aspects of this important instrument.

More information,
Qualified electronic signature VS Advanced electronic signature

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Differences concerning to other market solutions

Functionality Other platforms ANF AC
Implementation Sender - recipient: no installation required
Ability to identify and sign on the Web
API available for developers.
Interoperability Compatible with all types of token and certificates on signature server
100% compatible with browsers and terminals
Interoperable with 100% of certificate issuers
Qualified long term signature Advanced signature
Digital handwritten signature - personal rubric - Complying with data protection regulation
Privacy Send password session by SMS
Self-executing encrypted service
Selection of encryption key by sender
Media Email
Evidences Delivery order
Integrity of content, notifications and attachments
Delivery made
Release opening control
Signature Validation Certificate
Time-stamp at each stage of the process
Security SSL encrypted communications
ISO 27001 Certificate
PKI platform certified in compliance with eIDAS
Self-executing encrypted service
Data Protection Impact evaluation on data protection
Complies with GDPR
Complies with LOPD
Complies with LOPD Experts in PKI services
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