Sign PDF
Draw your signature with a mouse or finger and place it on any PDF page — a natural ink-style stamp created and saved fully offline.
Drop a file here or click to choose
This tool runs entirely in your browser. Your data never leaves your device — it is not uploaded to any server.
How to use
- 1Drop the PDF, then draw your signature on the pad.
- 2Choose the position, width and target page (1 by default).
- 3Click Sign & download and save the signed PDF.
Sign PDF
Sign contracts, permission slips and forms without printing them. Draw your signature on the pad, position it on a 3×3 grid (bottom right is the usual spot), set its width, and optionally add today's date underneath. The transparent PNG is embedded straight into the PDF.
This is a visible, image-based signature — perfect for everyday documents. It is not a cryptographic certificate signature, and whether it satisfies a given legal process depends on your jurisdiction.
Frequently asked questions
Is this signature legally binding?
A drawn signature image is widely accepted for everyday agreements, but legal weight varies by country and document type. For transactions that require one, use a qualified digital certificate instead.
Is the signature secure here?
Yes. You draw in the browser, the image is embedded into the PDF on your own device, and nothing is transmitted — not even the signature itself.
Can I sign every page of the document?
Yes. Fill the pages field with a list such as “1-5” or leave a single page; the signature is stamped in the same position on each selected page.
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Embed this tool
Put this tool on your own site with one line — it runs entirely in the visitor's browser.
<iframe src="https://zoyku.com/en/tools/sign-pdf?embed=1" width="100%" height="640" style="border:0;border-radius:16px" title="Zoyku — sign-pdf" loading="lazy"></iframe>