Blog articles tagged keytool

Perfect PDF Digital Signatures, EU style

by Mike Bremford

An updated version of the article we wrote 8 years ago, exploring how to create digital signatures with our API that are automatically approved by Acrobat: this time, with an EU Identity card

Perfect PDF Digital Signatures

by Mike Bremford

Not all digital signatures are created equal. Our PDF Library has been able to digitally sign documents for years, but digitally signing a file with a key that's trusted by Acrobat is a little trickier, and requires hardware. Here, we show you how to do it.

Public Key Encryption and PDF

by Mike Bremford

Most people when they think of protecting a PDF, think of a password. However this isn't the only way to do it. Both Acrobat and our PDF viewer allow a PDF to be decrypted using a private key which is specific to a user. In this article we show you how to create a key, encrypt a document for that key and then decrypt it again.