How to sign PDF
A practical explanation of visual PDF signatures and when certificate signatures are needed.
Visual signatures
A visual signature places a signature block, typed name, image, date, and optional email on the PDF. It is helpful for approvals, internal workflows, and simple document records.
Certificate signatures
A certificate signature is different. It uses a digital certificate to prove document integrity and signer identity. This is more complex and may be required for legal or regulated workflows.
Choosing the right option
For everyday documents, a clear visual signature is often enough. For high-value contracts or official submissions, check the rules in your country or organization before relying on any online tool.