YubiKey Not Detected for PDF Signing — Diagnostic & Fix

When a YubiKey is not detected for signing, the break is almost always in one of three layers: the OS driver/middleware, the PIV certificate inside the key, or the signing application's certificate selection. We work top-down through each layer on a screen-shared Zoom session — covering YubiKey 5 Series PIV configuration, Windows driver issues, macOS CryptoTokenKit, and signing with Adobe Acrobat and DocuSign — and deliver a written remediation report.

Next available slot typically within 1 business day · Written report included