Runs in your browser

Sign your PDF in the browser

You already have your signature — the one you use on deliveries and forms. Add it as an image to the pages that need signing, place it where the signature line is, and download. The document never leaves your device, which is the whole point of a signature.

Add your PDF

Drop a file here or click to browse. Nothing is uploaded.

Edits are applied on your device.

Why these tools are different

Most online PDF tools upload your document to a server and ask you to trust their deletion policy. These do the work on your own device, so there is no copy of your file to leak, breach or subpoena in the first place.

  • Use the signature you already have

    Scan or photograph your signature once, save it as a PNG, and reuse it. A transparent background works best — anything rectangular arrives with its own white box.

  • Placed where the document expects it

    Seven anchor positions plus a live preview, so the signature lands on the signature line rather than floating somewhere near it.

  • The document stays private

    A signed contract is a finished document. It is opened, stamped and saved inside your browser tab — no server ever receives a copy, before or after signing.

How to sign a PDF

Three steps, and nothing is uploaded.

  1. Add the PDF you need to sign

    Drop it onto the tool above or click to browse. Multiple files can be signed in one pass.

  2. Add your signature image

    Select the PNG or JPG of your signature. A transparent PNG keeps only the ink; a photo on white paper will show its background, so a scan with the background removed looks best.

  3. Position and download

    Choose where the signature sits — bottom right is the usual spot — then click Add signature. The signed copy is downloaded and your original is untouched.

Your PDF never leaves your browser.

Most online PDF tools upload your file to a server, process it there, and ask you to trust their deletion policy. We flipped the model: rearranging pages happens entirely on your device, using the same rendering engine your browser already has.

No server ever receives your document. There is nothing to leak, breach, or subpoena. That makes it safe for contracts, medical records, financial statements and anything else you wouldn’t hand to a stranger.

Read our privacy promiseTry it now

  • Zero uploads

    Your file content is never transmitted anywhere.

  • No accounts, no ads, no file tracking

    We don’t need your email, and we never see your documents.

  • Verifiable, not just a promise

    Open DevTools → Network while you work. You’ll see zero file requests.

Frequently asked questions

How do I sign a PDF?
Add the PDF, select an image of your signature, choose its position, and click Add signature. The signed document is saved to your downloads.
Is this a legally valid signature?
That depends on your jurisdiction and what the recipient accepts, not on the tool. This places an image of your signature on the document; it does not apply a cryptographic digital signature. Many workflows accept an image, and ones that require cryptographic signing will say so.
What kind of signature image works best?
A PNG with a transparent background. The tool also accepts JPG, but a photo of a signature on paper will carry its white background with it, so you get a white box around the ink.
Can I sign only one page of a long document?
This version stamps every page, which suits a full agreement. To sign a single page, split the document first, sign that page, and merge the parts back together.
Is my signed document uploaded anywhere?
No. Signing happens inside your browser tab, and no copy of the document — signed or unsigned — is transmitted to any server.

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