Using a PDF certificate, you can add an authenticated signature to PDF files. The PDF signature is automatically trusted within Adobe Reader. You will see either a green checkmark or a blue rosette at the top of the document.
PDF signatures are always installed on hardware for added security. The certificate can then no longer be copied or reinstalled elsewhere. If you only (manually) sign a small number of documents, we offer a PKI token. For large numbers of documents and automated signing, it is better to purchase an HSM.
It is possible to add a timestamp along with the digital signature. This ensures the signature remains valid even after the certificate that was used has expired, because you can verify that the certificate was indeed valid at the time of signing. Furthermore, you can digitally archive signed documents, which is very important for long-term validation!
1. Type of certificate
Which certificate will you need?
The longer the validity, the higher your discount.