Have been reading about PDF, and the false sense of security that owner password give us make me think in an additional layer of protection.
Downloaded a free tool and removed the owner password in a snap, no matter how complex the password was.
If understood, a PDF can be encrypted also with a digital signature certificate. Which can also can track if the document was modified, not the certificate by itself, but the reader + certificate.
If this is true and can protect our documents in a reliable manner, would like to ask adding this feature to BullZip.
Maybe the PDF experts around here could share their experience or knowledge about it.
TIA, Oscar.