Allow a new set of signatures on the same original document

[Extarys]

Is your feature request related to a problem? Please describe.
I created a test PDF Test signature.pdf for userA to sign, once signed, a new file Test signature.signed.pdf was created. Let's say this is a code of conduct or something.

A week later, I need userB to read and sign that document, but I need a separate "signed" pdf.

If I want another person to sign the same document (ie: code of conduct), I would need to copy the original file I'm guessing and now for two signatures I have 4 files.

Describe the solution you'd like
On the sidebar:

For the original document:

Show who requested the signature of that document and if/when it was signed for each "batch"

Admin on .... requested a signature to: userA, userD
userA signed on ....
userD signed on...

Add a button, "request new signatures" that will use the same predefined signing area, but we can set who needs to sign where

Describe alternatives you've considered
Right now I need to copy the original PDF so LibreSign sidebar allows for another set of signatures.

Additional context
Clear confusion between signed and unsigned file

[vitormattos]

I liked a lot your suggestion.

We only need to think about how will be the interface to do this and prototype wireframes with suggestions of changes.

Yes, this issue have strong connection to #4160 because to do this will be necessary to change the places at LibreSign that have logic considering the relation between the original and the signed file.

Now, we need help to funding this issue.
If you like this project and want to help, contact us by sponsor page
The funding is very important to keep alive this project.

[Extarys]

I liked a lot your suggestion.

Thanks!
Sidebar feature request: #4164