Does Collabora support digital signature eg eIDAS-USB token?
I read that Collabora online supports multiple visible digital signatures on existing pdfs. However I could not find anything about eIDAS or USB token…
Welcome to the forum, @Baldrick.
Thanks for the question.
I brought this up in the 123rd COOL Weekly Meeting, and there was some discussion about it.
I read that Collabora online supports multiple visible digital signatures on existing pdfs.
Was this the article you were talking about?
Does Collabora support digital signature eg eIDAS-USB token?
No, I don’t believe it’s supported by Collabora Online.
But, I believe Collabora Office / LibreOffice should(?) be able to handle them.
Can you explain a little more of your use-case?
- How are you using these hardware-based devices to sign your documents?
- Do you currently use another software to accomplish this?
- Is signing documents this way required by your business (or government)?
If you explain a little more of how you’re using this, perhaps this can help too. 
However I could not find anything about eIDAS or USB token…
After your post, I did some searching for “eIDAS”, and I was able to find a talk from:
Thorsten (allotropia) helped add that support into LibreOffice back then.
But trying to get this to even work within/between the browsers/OSes/documents (PLUS the Collabora document server)… that might be a much trickier solution.