What are digital certificates?
Definition and types Digital certificates are digital documents through which...
Frequently Asked Questions (FAQs)
Find answers to the most common questions we are asked, categorized by subject. Find answers about the legality of our products, their operation, integrations or generalities.
What are the differences between server and client signature?
Depending on the location where the electronic signature is carried...
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What Certification Authorities (CA) are supported by Viafirma?
In Europe Following the entry in force on 1st July...
What Certification Authorities (CA) are supported by Viafirma? Read More »
Electronic ID card (DNI electrónico in Spanish)- frequent questions
I cannot remember my Electronic ID card PIN. How can...
Electronic ID card (DNI electrónico in Spanish)- frequent questions Read More »
Adobe: “The validity of the document certification is unknown. The author cannot be verified”
Sometimes when we open a signed PDF, Adobe Acrobat Reader...
Is it possible to eSign a document without using digital certificates?
Yes. You are able to eSign a document using biometric...
Is it possible to eSign a document without using digital certificates? Read More »
Can I modify the document once it already has signatures or any other added evidence included?
If the process includes a form to add additional data...
When opening a signed PDF document, Adobe Acrobat Reader prompts ”At least one signature has problems”What does it mean? How can I fix it?
When we open a signed PDF, Adobe displays an error...
Policy configuration for API integrations
Policies are understood as the set of signatures, evidences...
Is it possible to customize the images used for each evidence?
For each of the evidences that we collect in our...
Is it possible to customize the images used for each evidence? Read More »
Which certificate has been used to sign the Viafirma Applet or JNLP?
To check the certificate used to sign Viafirma’s Applet...
Which certificate has been used to sign the Viafirma Applet or JNLP? Read More »
Viafirma Fortress: Solution to browser extension not activated
For the correct functioning of Viafirma Fortress Desktop from the...
Viafirma Fortress: Solution to browser extension not activated Read More »
How do I indicate the positioning in the document of an evidence in Viafirma Documents?
The easiest and most intuitive way to position the evidences...
How do I indicate the positioning in the document of an evidence in Viafirma Documents? Read More »