🛡️ Safe🔒 Secure✅ Reliable— No uploads, no server, no data kept — everything stays on your device.
PDF · Sign · Free

Sign a PDF

Draw your signature with your mouse or finger, right where you want it on the page — safely, since your document never leaves your browser.

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Click to choose a PDF, or drag it here
One file at a time
🛡️ Safe 🔒 Secure ✅ Reliable

Files are processed on your device — never uploaded, never stored, never seen by anyone.

How to sign a PDF online

Upload your PDF, navigate to the page you need to sign, and draw your signature directly on it with your mouse (or finger/stylus on a touchscreen). Use "Clear this page's signature" to redo it. Click "Save & Download signed PDF" when you're done — your signature is baked into the page at the exact spot you drew it.

You can adjust pen color and thickness before drawing, which is handy for matching a blue-ink look on a scanned form or making a signature legible on a busy page. Under the hood, your strokes are added as real vector line drawing — not a flattened image of the whole page — so any existing text elsewhere on that page stays exactly as it was, untouched by the signing process. This is the right tool for quickly signing something you're emailing back the same day: an offer letter, a simple agreement, a form that just needs an initial or signature — not for documents that require a formal, verifiable e-signature audit trail.

Can I sign multiple pages?
Yes — use the page navigation to move to any page and draw a signature there too. Every page's signature is baked in together when you save.
Is this a legally binding e-signature?
This draws your signature directly onto the PDF as part of the page image/content, the same way you'd sign a printed page. It does not add cryptographic signature verification or an audit trail like dedicated e-signature services (DocuSign, etc.) provide — check what your specific use case requires.
Is my PDF uploaded anywhere?
No — everything happens locally in your browser, which is what makes it safe: your signature and document never leave your device. See how it works.
Can I change the pen color or thickness?
Yes — both are adjustable before you draw, so you can match a specific ink color or make a small signature more visible on a dense page.
Does signing affect the rest of the page's content?
No — your signature is added as a separate vector drawing on top of the page, not by flattening the whole page into an image. Any existing text elsewhere on that page stays exactly as it was, still selectable and unaffected.