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Sign a PDF online, free

Add your signature to a PDF: draw it, type it, or use a photo of your paper signature. Click where it goes, drag it into place, add the date and save. Your signature stays in this tab.

Sign PDF

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  • 100% private Your PDF never leaves this device. Everything runs in your browser.
  • No limits No file-size cap, no watermark, no sign-up and no daily quota. Free.
  • Works offline Once this page has loaded, the tool keeps working without a connection.

How to sign a PDF online

  1. Add your PDF: Drop the PDF you need to sign.

  2. Check the settings: Make your signature in the pad that opens: draw it with a mouse, finger or pen, type your name in a handwriting style, or upload a photo of your signature on white paper. Press Place signature and click the page.

  3. Save the result: Drag it into position, press Date if the form asks for the date, and press Save signed PDF.

Why it doesn’t upload

A signature is the one thing you should never leave lying around on someone else’s server — and the documents people sign are leases, contracts, consent forms and tax papers. Here both are put together in your browser: the signature is made in this tab, placed in this tab, and forgotten when you close it.

Check it in your browser’s Network tab

Worth knowing

  • This puts a picture of your signature on the page, like signing a printout. It is not a certified digital signature: there is no certificate, no audit trail and no tamper seal. When a contract requires those, use the signing service the sender asks for.
  • Signatures are not remembered between visits, on purpose. Keep the PNG of a drawn signature yourself if you sign often, and upload it next time.
  • A photo works best taken straight on, in good light, on plain white paper; shadows and lined paper leave marks behind.
  • The signature is drawn onto the page, so after saving it can’t be moved again. Keep the unsigned original if you may need to sign it differently.

Under the hood

What happens to your file

A drawn signature is captured on a canvas, a typed one is set in a handwriting font, and a photo has its paper made transparent. The result is trimmed to the ink and saved as a PNG, then drawn onto the page at the spot you chose with pdf-lib. This is a visible signature, not a certificate-based digital signature (PAdES).

Runs on pdf-libpdf.js

Reference: pdf-lib documentation

Why sign a PDF without uploading it?

The documents people sign are leases, job offers, consent forms and contracts — and a signing service keeps both the document and your signature on its servers. Here you draw your signature, type it in a handwriting style or use a photo of your paper signature, place it on the page and save, all inside your browser.

There’s no account and no watermark, and your signature isn’t remembered after you close the page.

Common reasons to sign a PDF online

  • Tenancy agreements

    Sign a lease or renewal sent by a landlord or agent.

  • Job offers and HR forms

    Sign an offer letter or onboarding paperwork.

  • School and consent forms

    Sign permission slips and medical consent forms.

  • Invoices and delivery notes

    Add a signature and date to confirm receipt.

  • Signing on a phone

    Draw with a finger when you’re away from a computer.

Tips for signing a PDF

  1. Photograph your paper signature on plain white paper in good light for the most natural look.
  2. Press Date to put today’s date beside the signature.
  3. Place the signature on several pages by pressing Sign again.
  4. This is a visible signature, not a certificate-based digital signature — use the sender’s signing service when they require one.
  5. Fill in form fields first with Fill PDF Form, then sign the saved copy.

Questions

How do I sign a PDF without printing it?

Drop the PDF here, draw or type your signature in the pad, press Place signature and click the spot on the page. Drag it to adjust, then press Save signed PDF. No printer, scanner or account involved.

Is a signature added this way legally binding?

In many countries a simple electronic signature — a typed or drawn signature placed on a document — can be valid for everyday agreements, much like a signed printout. Some documents need more, such as a certified digital signature or a witness. If you are unsure, ask the person who sent the document what they accept. This is not legal advice.

Can I sign on my phone?

Yes. Draw your signature with your finger in the box; it comes out smooth and thin, the way a pen writes. Then tap the page where it goes.

Can I add the date and my initials too?

Yes. Date puts today’s date on the page, ready to drag into place. Text lets you click anywhere and type initials, a printed name or a title.

Can I sign several places in one document?

Yes. Press Sign again for each spot, on any page; move between pages with the arrows at the top. Every signature is saved into the PDF.

Is my document uploaded when I sign it?

No. Your signature is drawn, typed or photographed on this device and placed on the page in your browser. Neither the document nor the signature image is sent to a server.

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