Two things. Security and Certificate

Tagged: certificate, crash, security, signing

This topic has 3 replies, 2 voices, and was last updated 1 week, 4 days ago by iorx.

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2026-02-27 at 19:33 #64245

iorx
Participant

Hi!

Needed to test out these features.

Security: Crashes when using it activated in a profile.
Have tried all kind of settings. What I'm looking for here is to remove Edit and Restructure, but it doesn't matter how I set this.
Any logs I can provide?

Certificate: Works great, but there is a something strange happening here.
Checking the PDF it signed OK. But, edited status always comes out as "Modified". This usually shown only when a signed document has been edited after signing. This PDF is a straight pdf24-print, no editing.

Please tell if I can provide more solid information so it gets easier to track down it it's a fixable issue.

As always, an awesome suite of PDF-tools, KUDOS!
Brgs,

2026-02-27 at 19:47 #64246

iorx
Participant

Asked claude to analyze the resulting pdf. Hope this gives useful information.

The /Contents field in the signature dictionary is all zeros. The signature space is correctly allocated and the certificate chain is properly embedded, but the actual cryptographic signature data is never written.

This explains the behavior:
- Signer's identity: Valid — because the certificate is correctly embedded
- Document modified: Yes — because the empty signature can't verify document integrity
- Invalid Signature — there is simply no signature data to validate

2026-03-02 at 08:06 #64248

Stefan Ziegler
Keymaster

Hi, I'll check that and if there is an issue with the electronic signature feature, it will be fixed with the next version of the software.

2026-03-08 at 11:55 #64260

iorx
Participant

Thank you! I'll spam the update button then 😁
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