Contracts, invoices, consents and agreements signed by your customers in the simplest and most legal way.

Paperless - Sign without paper


Companies that trust us


How does it work?

1. Prepare your documents

Upload your documents in PDF, docx, odt format and add the neccessary input fields and forms to proceed to the signature

2. Send the request

Add recipients and send a request via email or SMS. You will receive a notification at the moment when sending the message.

3. Simple management

Tracking the overall signature process. Management and custody of the documents in the cloud.

Digital signature using a smartphone with Viafirma

Quickly fill your fields

Smart forms

  • Improve your user experience
  • Get your forms filled out faster than ever
  • Prevents errors when the user fills in the form thanks to the use of both validation and condicional fields

Prevents litigation caused by not reading the clauses

Mandatory reading clauses

Legal Guarantee

Peace of mind for you and your customers.
Complying with GDPR regulations

¿Why is it important?

Most people do not read all the contracts or do not understand some clauses. With this solution we are forcing the client to read and help him to better understand the most important clauses of the contract.

VIAFIRMA DOCUMENTS provides the most comprehensive solution on the market


Remote Signature

Mail or sms the documents to sign. The signer will be able to sign from anywhere in the world.

Face-to-face Signature

Sign documents in controlled environments via tablet or smartphone

Sign using the Digital Certificate

Sign or send signature requests to your customers to sign with digital certificate

Customized brands

Your customized apps and emails with your own brand

Template editing

Create templates to speed up the sending of reccurring signatures: Monthly contracts, payrolls...

Identification and Authentication OTP/SMS

Sign all your documents by only using just one SMS code

Customized Forms

Collects the signatory's data from and form and adds the information to the document information

Audit Trail

The entire signature process is audited considering all digitally collected events.

Advanced signature flows

It involves all participants in signing a document and sets the order of each signatory


It integrates the most comprehensive solution on the market in your favourite apps.

100% Cloud

Manages your digital signatures through our Cloud tool


The digital signature can be easily integrated into your Android and iOS apps.

Legal Regulation and auditing

Your documents signed and validated complying with the most demanding regulations in the world: EIDAS Regulation - (EU) N 910/2014


Our solutions offer full validity, complying with the most demanding regulations in the world: EIDAS Regulation - (EU) N 910/2014 (EU).


Documents signed by Viafirma Documents contain an audit trail that include all data, events, and evidence collected during the signing process.

EAD Trust, European Agency of Digital Trust, S.L CERTIFIES that, regarding the digitized signature management, Viafirma Documents meet the criteria established by this entity for the managed signatures to be considered as ''Advanced Digitized Handwritten Signature''

the digital signature suitable to any need

Easy Integration


Easy integration through our API REST


Access to our sandbox for free

Sign Documents

Integrate CRM, ERP and Salesforce with your tool



Viafirma documents is a digital signature software that allows you to sign documents (in PDF, DOCX, ODT format) on any device and from anywhere. 

Documents signed with Viafirma Documents are legally treated to comply with current EU regulations.

Upload your documents in PDF, Docx, ODT format. Include the necessary forms to carry out the signature. Create and use templates

In any of our plans we give you the option to unsuscribe at any time. 

Even if you unsuscribe you won’t lose your data, we simply won’t let you make any more signatures.

We offer you the possibility to use qualified signature (With digital certificate) or advanced signature (biometric signature, fingerprint reader, OTM/SMS identification)

Yes. Allows to create a PDF from pre-designed templates that can be done in two ways: using Microsoft Word and Adobe Acrobat with AcroForm input fields

Yes. Viafirma Documents allows integration with third-party backoffices through API Rest to facilitate the integration of third-party applications and manage users, devices, messages or notifications among other validation services

Documents can be stored in the tool or in your document management system. 

Viafirma Documents allows you to customize the final stages of a signed document life cycle , through different mechanisms for transferring and/or copying the generated and signed documents.

The supported mechanisms are: NFS, FTP, CMiS (Content Management Interoperability Services) and, in general, any repository that exposes its REST services.

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