Hello,
is there somewhere a tutorial or description how to use Kleopatra with a smartcard for encryption?

I would be especially interested in using it with the German nPA that can contain a digital signature.
But a general description would already be good. I tried to search, but could only find very old and very few results.

Thanks,
Johannes

Assuming you need to sign stuff with GPG, you can follow any tutorial that configures GPG with a smart card and Kleopatra will make use of it,. However, I'm unfamiliar with the exact smartcard you mentioned: can you give a little more details?

Kleopatra works with all Smartcards that GnuPG Supports (you can check that with gpg2 --card-status ). Kleopatra does not yet ( https://phabricator.kde.org/T2015 ) Support smartcard initialisation and keygen. So you would have to do this on the command line (gpg2 --card-edit ) or with GPA. Once it's initialized though you can use your smartcard just like any other private key in Kleopatra.
I'm personally using an OpenPGP 2.1 Smartcard ( https://wiki.debian.org/Smartcards/OpenPGP ) which is probably the best supported smartcard in GnuPG as it was designed together with upstream GnuPG developers

As for the nPA (Neuer Personalausweis) Afaik (and I'm pretty sure) there is no reader / free driver for it to work with GnuPG and I'm not sure if this would be even possible as I don't think that the nPA is a crypto smartcard in the traditional sense. You could ask on gnupg-users https://lists.gnupg.org/mailman/listinfo/gnupg-users .