The most powerful signature inbox on the market

Save time and costs in managing documents to be signed, with a powerful flow of signatures or approvals.


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Going paperless and more economical

It replaces the traditional signature folder. Sustituye el portafirmas tradicional. The days of walking up and down with the document are over. Save time and costs.

Intuitive and usable

It works like your usual inbox from your e-mail.


It adapts to all signature flows of your company, from the simplest to the most complex one


Greater security and integrity than the physical document.


Tracking, with detailed time and date


Allows the signature in batch, delegated signature, signing from your smartphone... It's a dream come true for any executive!

Complying with the law

Whether you use or not the digital certificate, Viafirma Inbox complies with the European legislation, both in Trusted Services (eIDAS Regulation) and protection of personal data (GDPR)

why choose viafirma inbox?

Powerful and easy-to-use at the same time

Simple, advanced or qualified signature

Sign with your local or cloud certificate, with OTP SMS or with your digitized or biometric signature.

Signature delegation

Introducing task delegation from one user to another. Tasks can be permanent or for a certain period of time, allowing to apply certain access filters.


Interface 100 percent adapted to mobile devices, allowing to entirely carry out electronic signature tasks from your smartphone. Free apps available on App store and Google play.

Signature Flows

Visually defines complex document signature workflows. Sign documents in any order, at the same time, or approvals. Search by signatories belonging to a specific group, or job position, etc.

Integration with document managers

We are already integrated with the following ECM softwares: Documentum, Nuxeo, Alfresco, IBM Filenet, Sharepoint, etc.

Cloud Signature

Boosts Viafirma Inbox combining it with our centralized signature solution Viafirma Fortress


Creates 100 percent independent Digital Signature folder (portafirmas) web portals, with different settings and graphic style


Metadata can be open values added at the time the signing request is created, or predefined fixed metadata managed by the administrators of the platform.


Timestamping allows you to check integrity and existence of the dataset, including time and date of the signature in the e-document.

The signature suited to any need

Easy integration

With your document manager or any other eBusiness tool

resolutions to the most common questions


If I have multiple requests in my inbox can I sign them in one go?

Yes indeed. You can select all signature requests to perform the electronic signature in a single operation.

Can I send documentation to sign to several people in one go?

We can define signatory as one or several people, a job, a group, or special “responsible for a user” or “subordinates of a user” groups

Can I sign with Viafirma Inbox from my smartphone?

Viafirma Inbox Viafirma Inbox has an interface 100 percent suitable for mobile devices, comtemplating the implementation of tasks on the phone. It also includes native applications in Apple Store and Play Store for free.

Do they comply with the legal requirements of the European Union?

The electronic signature is an electronic dataset associated to an electronic document and whose basic functions are:  unequivocal identification of the signatory and ensure integrity of the signed document. 

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Signature delegation and how it can benefit you

There is no person with the ability to be in several places at the same time or to carry all the responsibilities of a company. Luckily, there is the figure of the signature delegation, which also takes advantage of the digital signature. What benefits can the signature delegation offer you? Why should you consider using it?
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One of the most useful tools to start the process of digital transformation in an entity is precisely the integration of the digital signature in its signature and authentication processes with both clients and employees. Therefore, we will detail how it affects the integration of a digital signature solution within an entity and what features and benefits can bring to each department.
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related guides and documentation


Double check the Digital signature folder (portafirmas) guide, Viafirma Inbox

Also in your smartphone or tablet

Available for iOS and Android

With your document manager or any other eBusiness tool

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