SigillumSign PWPW
Use this command to install SigillumSign with WinGet:
winget install --id=PWPW.SigillumSign -e Sigillum Sign is PWPW free application for signing and verifying files. It is designed for Sigillum e-signatures but works with any other electronic signature. You can sign multiple files at once, add a countersignature, extend the signature with an archival timestamp, and sign normative and legal acts.