Resources

Are you wondering how to sign a pdf on your mobile? We explain the steps to follow and how Viafirma's business solutions allow you to optimize and strengthen the security of your signature processes....

Are you wondering how to insert a digital signature in PDF? We present you different alternatives with different degrees of security...

Have you ever heard of XAdES? There are multiple signature formats due to historical reasons, how eSignatures have been introduced into existing document formats along with features added over time....

Are you wondering which is the best application for signing documents? There are numerous options, but not all of them have the maximum security and legal guarantee...

The timestamping is a term widely used in the field...

We tell you how to get the digital certificate and how to check its validity. We also explain all its uses and utilities...

Do you know the purpose of the CAdES format? Today,...

What exactly is PAdES format? Digital documents are increasingly being signed electronically. Once they are registered they must be stored correctly - sometimes for several years and in other cases permanently....

To find out if a document is electronically signed, just open it in Adobe and examine it - here's how to do it!...

PDF 417 is a barcode that can be used to recognise almost any item and also to identify a signature...

We share a guide to use your electronic signature in Spain with a digital certificate to carry out procedures more quickly and easily....

We tell you how to sign documents with the electronic ID Card and the type of signature you get when you sign with your electronic ID....

Invoices, contracts, payrolls or receipt of documents are just a...

In this article we tell you how to install and export a digital certificate in Windows step by step....

The digital certificate is an element that is not exempt...

Do you know how to sign a document electronically? In...

We will tell you what the universal signature is, a concept of its own that we have already explained in other publications....