PDF digital signatures validation status

PDF Studio validates any digital signatures upon opening a document. PDF Studio will first check that the digital signatures in the document use valid certificates and that the document has not been changed. It will then check that the certificate used to issue the digital ID in the signature was issued by a trusted certificate […]

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How to setup USB Smart Card Hardware PKCS11 signing on Mac

Q: I need to sign PDF documents with my USB Smart Card. Can I do that using PDF Studio on my Mac system? A: Yes, you can. Starting in PDF Studio 11.0.4, we allow users to sign a document using their USB Smart Card. You can see the setup below as a reference. In this example, we used […]

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How to setup USB Smart Card Hardware PKCS11 signing on Linux

Q: I need to sign PDF documents with my USB Smart Card. Can I do that using PDF Studio on my Linux system? A: Yes, you can. Starting in PDF Studio 10.1.0, we allow users to sign a document using their USB Smart Card. You can see the setup below as a reference. In this example, we […]

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