Can I sign a .pdf with pkcs11 smart card (CAC)

[timko]

I am looking for a way to digitally sign US Government .pdf forms using a pkcs11 smart card (US military CAC card). On Windows machines, this is normally accomplished through Adobe Reader. I have the card reader setup and fully funtional with Firefox for accessing government websites.

Operating System Details:
Debian 9.5 LXDE,
LibreOffice 5.2.7,
coolkey 1.1.0-13,
libccid 1.4.26-1,
libpcsclite1 1.8.20-1

Example forms can be found at https://armypubs.army.mil/ProductMaps/PubForm/DAForm.aspx ; https://armypubs.army.mil/pub/eforms/DR_a/pdf/ARN6954_A31_Final.pdf

Please let me know if you need any additional information or assistance in testing.

[mikekaganski]

LibreOffice 5.2.7

Signing of existing PDFs has only been introduced in 5.3 (see relevant blog post).

[claude2]

Hello !

I’m from Belgium, where we use electronic ID cards (containing certificates to “sign as citizen”).

I suppose your problem is quite the same as mine : my ID works in Firefox for government data (tax, VAT, and so on, …)

This is the way I do sign PDF’s produced from LO Writer, hope it is usefull to you :

1. Make sure your card is inserted before opening LO
2. Use writer to compose your text
3. Once ready, “File → export as PDF”
4. When exporting to PDF, in the export menu, choose ‘Digital Signatures’ tag (or equivalent, I use a FR version of LO)
5. Select the certificate you want to use. (Sometimes, for BE ID, I have to cancel and retry to get the list of certifs)
6. Export your PDF : you will be asked for your secret key.
7. All done !

Hope this is helpfull,

Wonderful day to all !

Claude

LO 5.4

[praetp]

Hi,

I am also from Belgium. In LO 6.0.3.2 this does not seem to work (anymore)

Paul