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#Kofax power pdf signature for mac#
When you view a signed document in Kofax Power PDF for Mac the document will display one of three states: The certificate is checked against OSCP or CRLs to ensure it hasn't been revoked.The expiration date of the certificate is considered.The chain of trust of the certificate is validated.The signature of the certificate is tested to ensure the certificate is valid.The signed content of the document is validated to ensure it hasn't changed.When you open a PDF with a digital signature using Kofax Power PDF for Mac, the following steps occur to validate the signature: Kofax Power PDF for Mac is capable of checking both, as necessary.
One system is called the Online Certificate Status Protocol (OSCP), and the other is Certificate Revocation Lists (CRLs). Issuers of digital certificates maintain systems to check whether a digital certificate has been revoked or remains valid. In an event such as this it's possible to revoke the digital certificate.
For example, if you lose your laptop or your secure USB dongle someone else could gain access to your private key, which means the integrity of the certificate has been compromised. Just because a certificate is verified as trusted does not mean it always must be so. Adobe's applications only trust signatures with root certificates from the Adobe Approved Trust List (AATL). Securityĭigital certificates have a "chain of trust", which begins with a root certificate, may include intermediary certificates, and ends with the certificate of a person or company. It's safe to give your public key to others. Your digital certificate, containing your public key, along with your identity information and the digital signature, is embedded in any documents you sign. Documents are signed using this private key. Unlike the public key which helps make up the certificate, the private key is typically stored on your system keychain where other secure items, like passwords, are stored. Digital signature, typically of a trusted third partyĪlong with your digital certificate, you create a private key.Identity information for a person or company, for example, a name, country, and location.What is a Digital Certificate?Ī digital certificate is a piece of data, typically stored in files or on an external device, such as a secure USB dongle, which contains:
#Kofax power pdf signature software#
This may involve purchasing a certificate and may involve installing software from the provider. In order for you to digitally sign a document, you need to obtain a digital certificate from a certificate provider, such as those on the Adobe Approved Trust List (AATL). When you open a document that was digitally signed, Kofax Power PDF for Mac will validate the digital certificate it was signed with and inform you whether the certificate is from a trusted source. Proves the document originated from a specific individual or organization. Nothing has been added, changed, or removed since the document was signed. Proves the document has not been altered.
This certificate is the way to ensure the integrity and authenticity of the document once signed. To accomplish this, digitally signing a document means applying a digital certificate to the document. The goal of a digital signature is to provide a way for the document's recipient to verify the identity of the one who signed it, and that nothing has changed since it was signed. Exporting to Microsoft® Excel, PowerPoint, and PDF/A.Highlight, Underline, Strikethrough, and Squiggle.
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