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Sign PDF
Digitally sign PDFs with a certificate from a Windows USB signing key.
Connect the USB signing key and make sure its Windows driver or token middleware is installed. This page does not read a normal USB drive directly. It only lists signing certificates that Windows has already loaded from a cryptographic token into the Personal certificate store. Your private key remains on the device, and the token software may open a secure PIN prompt while signing.
Sign with a USB certificate
Create an Adobe-compatible cryptographic signature using a certificate in the Windows Personal store.
Drag and drop a PDF here, or click to select
Maximum size: 100 MB
This local integration currently supports Windows certificate-store tokens. It does not upload the certificate, PIN, PDF, or private key to an external service.