The digital signature that certifies your identity, professional status, and organizational affiliation.

The Digital Seal that Keeps your Digital and Paper Documents Secure

CertifiO Code

Trusted timestamp service for time-sensitive documents and emails.


The software that makes digitally signing all your PDF documents easy.

ConsignO Desktop

A digital and trusted electronic signature platform with high-level legal reliability.

ConsignO Cloud

Ensures the reliability of thousands or millions of documents by automating your business processes.

Consigno Server

Easily check signatures, PDF/A compliance, and VDSs (visible digital seals).

Available in mobile, Web or Server version.



The Notarius Trustworthy Digital Signature

Digital signatures are far from being equal in terms of reliability: we have described this in our article on digital signatures. What about Notarius’ digital signatures?

First, Notarius’ digital signature is marketed under the name “CertifiO.” CertifiO is a digital certificate that allows a person to affix a digital signature to an electronic document. The act of signing digitally can be accomplished with any software that has access to digital certificates installed on the workstation (e.g. Adobe Acrobat) or using ConsignO, the software developed by Notarius that allows advanced digital signature operations. ConsignO Desktop is included with CertifiO -subscriptions for Professionals and for Employees.

An important feature of the Notarius digital signature is that it confers authenticity to signed documents. Notarius ensures that all the required information to prove the origin and integrity of the document is included in the document. Notarius also ensures that such documents can be authenticated for a long period of time through the use of international standard “PAdES/Long Term Validation.” Notarius includes a timestamp in its signed documents.

Finally, to properly assess the robustness of Notarius’ digital signature, one must take into account all of the following elements which contribute to the robustness of the millions of Notarius signatures already in existence, and which provide an optimal level of reliability of signed electronic documents:

  • Certification Authority (“CA”): Notarius is a CA recognized by Microsoft, Apple and Adobe;
  • Identity Management: Notarius performs face-to-face identity verification, requiring proof of identification with a government-issued photo ID to initiate the issuance of digital certificates. Notarius only accepts identities recognized by a federal, provincial or territorial government;
  • Attribute Management: When you choose a CertifiO subscription, Notarius certifies the professional status of the signatory – or employer – for each signature. When it certifies the employment status, Notarius is the only North American company that establishes partnerships with professional bodies and associations so that they validate professional status and revoke it at will, all in accordance with their mission to protect the public (for a professional association). Notarius establishes a similar approval mechanism to ensure employer credentials for subscribers of CertifiO for Employers;
  • ID Management: Notarius has strict rules securing the issuance of the digital certificate to its rightful owner. Once in possession of the certificate, the signatory must use two-factor authentication to sign documents;
  • Trust Management Chain: Notarius maintains a detailed audit trail that accurately and irrefutably documents who allows or initiates each key event in the life of a digital certificate (excluding signatures by the user);
  • IT & Human Processes Management, Continuous Optimization and External Certifications: Notarius was founded and built on the primary concern for the robustness and security of its IT and human processes. Notarius is therefore regularly checked and certified ISO 27001 and 9001.

Considering all the above, it is not surprising that Notarius is the only recognized certification authority that is used by more than thirty-five professional associations in Canada and several governments and large-scale employers.

Beyond the robust Notarius trusted signature, why choose Notarius? This is what we will see in the next article on The Notarius Edge.