SigneServer - pdf sign

Hi,

I’d like to know if an application as SignServer could be added on YNH.
It gives the possibility to sign pdf with certification.

Or is there already an equivalent?

Thanks

here Anwendungskatalog | Yunohost Documentation they are, all the yunohost apps and Signaturepdf is you are looking for.

Thanks for your answer.
I should have said that I’m already using Signpdf.
but this one add signature which are not certified (it’s just an image)

I’m in search for an application which give the possibility to authentify the user and certify the signature.