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.



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Validate a signature

What you should know

A digitally signed PDF will have the signer’s digital certificate embedded within. It is possible to view this information within ConsignO, even if the signature is invisible. You can also view which documents are signed in the My Computer view by revealing the signed documents.

To reveal signed documents:

  1. From the My Computer view, select the folder in which you want to see if there are signed documents.
  2. Either right-click or use the Edit menu and select Reveal signed documents. You can also use the Reveal signed documents icon in the toolbar.
  3. A green check sign will appear beside every signed document in the folder.

To validate a signature:

  1. Open a document in ConsignO

When a document is already signed, a blue band appears at the top of the document indicating that the signature is valid.

  1. Click on the Signature validation tab at the bottom of the page

You can now see who has signed the document, the digital certificate information associated to his or her digital signature, along with a detailed chain-of-trust analysis to attest the authenticity of the document.

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