Sign PDFs – by hand or digitally

Sign PDFs – by hand or digitally

PDFnord supports both kinds of signature. For everyday use, place a visible handwritten signature with mouse, pen or touch. When proof matters, sign digitally with a certificate – every PDF reader can then tell whether the document was changed after signing.

A visible signature in seconds

1. Choose the Sign tool.
2. Draw your signature with mouse, pen or finger.
3. Place it, adjust the size, save.

Digital signature with a certificate

• PKCS#7 signature with SHA-256, embedded in the PDF.
• Use certificates from the Windows certificate store or a self-created certificate.
• Visible signature field with name, date and reason – or an invisible signature.
• Any later change to the document makes the signature show as invalid.

Note: whether a signature is legally sufficient for a specific purpose (e.g. a qualified electronic signature under eIDAS) depends on the certificate used and the use case.

Everything stays on your computer

Your documents and certificates never leave your device. PDFnord signs locally – no uploads to third-party data centres.