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Sign PDF – Add Your Signature to a PDF Online

Sign contracts, forms and letters without printing them. Draw your signature with a finger or mouse, type it in a handwriting style, or upload a photo of it; drag it into place on any page; and download the signed PDF. No account, no watermark, and your document never leaves your device.

Your files stay on your device

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How to sign a PDF

  1. Choose your PDF. The last page opens in the preview, since that’s where signatures usually go.
  2. Create your signature:
    • Draw it in the box with your finger, stylus or mouse, and pick the ink colour.
    • Type your name and choose a handwriting-style font.
    • Upload a photo or scan of your signature.
  3. Place it. Choose the page, set the size and drag the signature box on the preview — or select it and use the arrow keys.
  4. Press Add signature to page. Repeat for other pages if needed.
  5. Press Sign and save PDF and download the result.

Electronic signatures explained

There are three broad levels:

  • Simple electronic signature — any electronic sign of agreement, such as a typed name or an image of a handwritten signature. This tool creates one.
  • Advanced electronic signature — uniquely linked to the signer and able to detect later changes, usually through a signing service that verifies identity.
  • Qualified electronic signature — an advanced signature with a qualified certificate; in the EU it has the same legal status as a handwritten signature.

For leases, employment letters, permission forms and most business agreements, a simple electronic signature is commonly accepted. Banks, governments and courts may require more. When in doubt, ask the person who sent you the document.

Tips for a professional result

  • Sign larger than you need, then make it smaller with the size slider — it looks smoother.
  • Use dark blue or black ink, the conventional colours for signatures.
  • Line it up on the signature line using the preview; zoom your browser if needed.
  • Add the date with the fill PDF form tool if the document has fields for it.
  • Protect the signed copy with a password using protect PDF if it contains personal details.

Signing on a phone

The drawing pad works with your finger on phones and tablets. Turn your phone sideways for more room, sign slowly, and use the size slider afterwards rather than trying to sign small. If your signature looks shaky, try the typed option or photograph a signature written on paper.

Privacy

Many e-signature services store your documents and signature on their servers. This tool doesn’t: the PDF is opened, signed and saved inside your browser, which is useful for confidential contracts, medical forms and financial paperwork.

Need to send several documents at once? Combine them first with merge PDF, or add a “SIGNED COPY” label with watermark PDF.

Frequently asked questions

How do I sign a PDF online for free?

Choose the PDF, create your signature by drawing, typing or uploading it, pick the page, drag the signature to the right spot, press “Add signature to page” and then “Sign and save PDF”.

Is an electronic signature legally valid?

In many countries, including the US (E-SIGN Act), the EU (eIDAS) and the UK, simple electronic signatures like this are legally recognised for many everyday documents. Some documents — such as certain property, court or notarised papers — need a qualified or witnessed signature. Check what your document requires.

Is this a digital signature?

No. It places an image of your signature on the page. A certificate-based digital signature cryptographically locks the document and identifies the signer; that needs a certificate from a trust provider.

Can I sign more than one page?

Yes. Choose a page, place the signature and add it, then choose another page and add it again. Each placement is listed and can be removed before saving.

How do I get a clean uploaded signature?

Sign on plain white paper with a dark pen, take a well-lit photo straight on, and keep “Make the white background transparent” ticked. The tool trims the empty space around it.

Is my signature stored?

No. The signature and the PDF exist only in your browser while you work, and nothing is uploaded.

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