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Signature isn't selected when trying to sign during export of PDF-file in Writer

asked 2019-02-18 18:26:52 +0200

Henrik-R gravatar image

updated 2020-08-10 22:46:48 +0200

Alex Kemp gravatar image

Hi!

I have an Enigmail PGP signature that I use in Thunderbird under Ubuntu Linux. In Libre Office I can use it to sign (and encrypt) an ODT-document. But when I try to use it during export of a document as a PDF document something goes wrong. In the 'PDF Options' window on the 'Digital Signature' tab, I click on the 'Select' button and get the 'Select Certificate' window. My signature is already selected (it's the only one present). I now click on 'Sign'. The window closes, but the signature isn't shown in the field called "Use this certificate to digitally sign PDF documents:". So when I press the 'Export' button, I get a "signature generation failed" error message, and export of the PDF file fails.

Can anyone help me? Thank you.

Best regards, Henrik

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I also tried signing an existing PDF-file, following the instructions on: https://vmiklos.hu/blog/pdf-sign.html - In other words:

  1. Open LibreOffice Draw
  2. File-menu -> Digital Signatures -> Sign existing PDF.
  3. Select/open document.
  4. Press 'Sign Document' button. But here, my signature isn't shown, so I can't select it and sign with it...

I look forward to hear from you guys. Thank you.

Best regards, Henrik

Henrik-R gravatar imageHenrik-R ( 2019-02-27 16:52:25 +0200 )edit

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answered 2020-11-09 10:15:40 +0200

sudo aa-complain usr.lib.libreoffice.program.soffice.bin

If you get error, install apparmor-utils

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Asked: 2019-02-18 18:26:52 +0200

Seen: 814 times

Last updated: Nov 09 '20