x509certificate2 Add Digital Signature 2021.1 could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The software is included in Development Tools.
We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software. The actual developer of the program is Add Digital Signature PDF Programmatical.
From the developer:
An x509certificate2 certificate is an encryption certificate used to digitally sign PDF documents. This allows us to encrypt them, ensuring that they have not been edited or altered in any way. It's a form of digital signature, ensuring that the end user receives an unedited PDF document so that you can ensure that your content is being delivered verbatim without being edited by third parties along the way.
You may want to check out more software, such as C# Digital Signature PDF, Digital Signature PDF Programmatically or OpenEye Digital Signature Verifier, which might be related to x509certificate2 Add Digital Signature.
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