Sign PDF
Draw, type, or upload your signature. Place it precisely anywhere on any page. Embedded locally using pdf-lib — your document never touches a server.
How to use the Sign PDF tool
PDFZero lets you sign a PDF document without creating an account. Draw your signature with a mouse or touchscreen, type it in a stylized font, or upload an image of your signature — then place it anywhere on the page. Everything happens in your browser, so your document never leaves your device.
Steps
- Click the drop zone above and choose the PDF you want to sign.
- Create your signature by drawing, typing, or uploading an image.
- Drag and resize the signature to the right spot on the page.
- Download the signed PDF — no account or upload required.
Why use this tool?
Adding a signature to a PDF is needed for contracts, agreements, forms, and approvals. Doing it in-browser avoids uploading sensitive legal documents to a third-party server.
Frequently asked questions
Is this a legally binding electronic signature?
PDFZero adds a visual signature image to your PDF, similar to signing a printed page. It is not a certified digital signature (like those requiring identity verification under eIDAS or similar regulations) — check your use case's legal requirements before relying on it for formal contracts.
Is my signed document uploaded to a server?
No. Signing happens entirely in your browser — your document and signature image never leave your device.
Can I reuse the same signature on multiple documents?
Yes, you can save time by drawing or uploading your signature once per session and placing it on multiple pages.
Can I resize or reposition my signature after placing it?
Yes, drag and resize the signature freely before finalizing and downloading the signed PDF.
Does it cost anything or require an account?
No. Signing is completely free and doesn't require creating an account.