https://bugs.kde.org/show_bug.cgi?id=448545
John Scott <[email protected]> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |[email protected] --- Comment #4 from John Scott <[email protected]> --- (In reply to Albert Astals Cid from comment #1) > I see no reason at all for why would be of any use. Please explain why it > would be great with more detail. Another reason would be if the signature already made on a PDF is not useful anymore: perhaps because of the certificate expiring or being revoked without long-term validity provisions being made, and one wishes to sign it with a new certificate or, at the very least, discard the old signature to prevent confusion or trouble. For example, I routinely need to send a standard signed letter to new people and, to prevent confusion, it's helpful for me to update the date field and re-sign each time as an affirmation that the special notice in that letter is still effective. I currently keep a "plain" PDF around and use a makefile to help add the annotations programmatically and sign from the command-line, but applying a signature that cannot be removed as easily as it was added has frustrated me on some occasions. I don't know off-hand if Poppler makes this easy. Also, "printing to PDF" is a hack that removes important machine-readable information from the PDF such as structural elements and isn't a good long-term practice. -- You are receiving this mail because: You are watching all bug changes.
