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Sign PDF – Add Your Signature

Sign undertakings, declarations and forms without printing — draw with your finger or upload a signature photo.

✓ Free✓ No upload — runs on your device✓ Works on mobile

Choose the PDF, draw your signature (or upload a photo of it — the white background is removed), pick the page and position, and tap Sign PDF.

Getting documents right for online forms

How to sign pdf – add your signature

  1. Choose the PDF.
  2. Draw your signature or upload a signature image.
  3. Pick page, position and size — optionally add today's date.
  4. Tap Sign PDF and download.

FAQs

Is a signature added this way legally valid?
It is an image of your signature, suitable for most forms and undertakings that ask for a signed copy. It is not a certificate-based digital signature (DSC).
Can I sign every page?
Yes — choose "Every page" in the page option.
Are my files uploaded to a server?
No. The tool runs entirely in your browser using JavaScript — your files never leave your phone or computer, so they stay private.

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