Sign to Sign: End-to-End Digital Signing

Sign to Sign®

The HUB of Services
of Qualified Trust

Technology of first level, now at the reach of everyone

SigntoSign® is a comprehensive solution, that allows you to streamline the processes linking the company’s legal through features and services based on Services of Qualified Trust.

Allows the signature of distance contracts, as well as other documents using advanced electronic signature, electronic signatures, qualified and signature grafométrica. In the same way, allows the realization of deliveries certified and validation qualified among others.

What you can find in Sign to Sign?

Qualified E-Signatures

Advanced Electronic Signature

Grafometric Signature

Qualified Validation

Delivery Certified SMS

Delivery Certified mail

Centralization of Electronic Certificates

File encryption

Collection of Consent

Qualified E-Signatures

Advanced Electronic Signature

Grafometric Signature

Qualified Validation

Delivery Certified SMS

Delivery Certified mail

Centralization of Electronic Certificates

File encryption

Collection of Consent

Scalable and modular

We supply our APIS, in the form of a PARTNER or a technology Provider.

Sign to Sign®

All the services you need in a single SaaS platform. Works with total legal guarantee, easy and no facilities.

Sign to Sign API

All of the products and their functionalities in the form of APIS, for integration into business flows and existing third-party platforms.

Qualified e-signatures for documents, instantly

Forget about displacement, simplifies and automates the signature and document control legally and safely. Signed with an electronic certificate and get advanced electronic signatures and qualified.

Key benefits, discover more than 200 features!

Compliance RGPD

Qualified Validation

Signatures
Certificates

Exhibit Certificate

Signatures
Certificates

Shipments encrypted

Share information securely

Configure your orders

With mass mailing, sequential, parallel, and multidocumento

Centralization of Electronic Certificates

Communications Certified

Signature grafométrica

Grafometric Signature
Hybrid Signature

Electronic Signature

Advanced Qualified

Compliance RGPD

Qualified Validation

Signatures
Certificates

Exhibit Certificate

Signatures
Certificates

Shipments encrypted

Share information securely

Configure your orders

With mass mailing, sequential, parallel, and multidocumento

Centralization of Electronic Certificates

Communications Certified

Grafometric Signature

Grafometric Signature
Hybrid Signature

Electronic Signature

Advanced Qualified

No matter the size of your organization

Sign to Sign is a flexible, scalable platform

However big your entity, you can be sure that we have the resources to meet your requirements, please refer to our SLA. , we Know that you can only use effective tools and safe. For your organization, such as to Sign to Sign ®, the default policy is not an option.

If you are a freelancer or a small business, we know that for you the price, the technical and legal assistance are crucial elements. You can’t lose the time on complex tools, therefore, there is nothing more easy to use that Sign to Sign®.

Don’t hesitate any more. It starts now with the free trial!

Tour 360º

Come with us and discover how we can help you.

Explore quick way to your next management platform.

Solve all your questions

How can I make a handwritten signature (rubric)?

You can create handwritten signatures using the “Handwritten Signature” function on the platform. This allows you to draw your signature on paper—either from your smartphone or directly on your computer.

Attention! Don’t confuse creating a digital handwritten signature with the legal effect of a traditional handwritten signature.

Do you have questions? We explain this in detail on our legal blog.

Can I use my mobile phone’s touchscreen to sign with my finger?

Of course! This option is available for your customers and recipients. It’s convenient and extremely easy to use.

Will I be notified when the recipient signs?

Absolutely. We keep you informed at all times about the status of the delivery and send you a notification as soon as the recipient completes the process.

Can I cancel a document once it has been sent?

Yes. You can cancel a document as long as it has not yet been signed by all parties. If needed, you can also resend the document by following the steps provided in the platform.

What are the differences between a biometric signature and an electronic signature?

It’s easier to highlight what they share: both are intended to identify the author and confirm intent, serving as proof of authorship and declaration. In essence, the signature establishes the link between the signer and the signed document.

What does this allow you to do?

Deliver attachments via certified email and SMS.

Ensure full traceability of all transactions.

Give recipients direct access to documents.

No registration or account required for the recipient.

Delivery via download from the ANF AC® eBurofax web platform.

Option to include 2FA requirements for access to encrypted documentation.

Automatic generation of informed consent records (GDPR).

Option to send encrypted data and documents.

Provide proof of content authenticity before a court of law.

Allow recipients to respond, if enabled by the sender.

Option for the sender to decide whether to accept a response, including setting a deadline.

Can I add multiple recipients?

Yes. You can add up to 5 recipients and signatories. For more than 5, there is also a Bulk Delivery option.

Who issues the certified delivery evidence?

The ANF Certification Authority, as a Qualified Trust Services Provider (QTSP), is responsible for managing the service, generating the evidence, and certifying it with a long-term qualified electronic signature.

Regulatory compliance

Our PKI platform is developed in accordance with Regulation (EU) 910/2014, Spain’s Electronic Signature Law, ETSI standards, ISO 27001, and data protection legislation (GDPR and LOPD). A Data Protection Impact Assessment (DPIA) has also been conducted.

Is it possible to track the sending and signing process?

Yes. You can track the status of a shipment in real time through the details view of the selected shipment. To access, simply select the command from your main screen. If you want to know whether the order has been completed, don’t worry—we’ll notify you as soon as it is signed.

Judicial proceedings

ANF Certification Authority has legal experts capable of preparing expert reports, ratifying them, and providing testimony in court.

What can be certified?

All evidence issued by this certified delivery service carries full legal value and evidentiary effect. Each item is authenticated by qualified electronic signatures, which are legally equivalent to handwritten signatures.

We advise extreme caution with providers offering only advanced signatures, citing “ease of use.” Both advanced and qualified signatures are equally simple to use—the difference is that the provider must have QSCD (Qualified Signature Creation Device) technology and be able to operate it. ANF AC has QSCD technology. When choosing a provider, we recommend carefully reviewing the legal aspects of this essential instrument.

Is it possible to send multiple documents at once?

Yes.

Are submissions encrypted?

Yes. All SigntoSign shipments are encrypted and transmitted through a secure channel.

Do all users of the platform, senders and recipients, need accounts?

Only senders must have an active account in SigntoSign. Recipients of your shipments do not need to be registered on the platform.

Is Sign-to-Sign compatible with all browsers?

Yes. Sign-to-Sign is compatible with all major browsers.

Is there an option to create default templates?

Yes. You can create default templates and reuse them as many times as needed.

Why use a validation service?

Warranty and coverage: Ensure, with all the guarantees of a professional Trust Service Provider, that the electronic signatures and certificates used in your company’s documents are legally valid.

In short: make sure the signature applied truly holds legal validity—and enjoy peace of mind.

What is consent collection, and what is the difference between express and explicit consent in Sign-to-Sign®?

Consent is a clear, positive, and active act by the individual, indicating unequivocal agreement to the processing of their data.

Explicit consent is a reinforced form of consent that must be collected clearly and precisely, especially where there is a significant risk to data protection. It is required, at minimum, in the following cases:

Processing of special categories of data (Art. 9 GDPR)

Automated decision-making (Art. 22 GDPR)

International data transfers (Chapter V, Art. 44 GDPR)

How does file encryption work in Sign-to-Sign®, and how can I attach encrypted files?

When configuring a shipment, Sign-to-Sign® allows you to attach additional files to the main document. These files are securely encrypted, are provided only as references or supporting material, and do not require the recipient’s signature.

Encryption technology: Files are encrypted using AES (Advanced Encryption Standard) with a 256-bit key.

Recipient access: Files can be downloaded within the validity period defined by the sender, through a secure web gateway, with password protection.

Steps to attach encrypted files in Sign-to-Sign®:

In the sending settings, click “Attach files” and select the desired files.

Check the box “Encrypt files.”

Set the password generation method.

Define the lifetime or expiration date of the shipment.

The encrypted files will be delivered via a separate gateway from the signed document, and recipients will access them through the notification email of the signing order.