Sign PDF

Signing works with a finger, a stylus or a mouse, and the signature is saved for next time.

Choose a file to get started. It is processed on your device and never uploaded.

What you can do

  • Draw with a finger, stylus or mouse — ink responds to pressure and speed
  • Type your name in a handwriting font, or upload a photo of your signature
  • Saved on your device for next time
  • Resize, rotate and place signatures and initials anywhere

How to use Sign PDF

  1. Choose the PDF to sign.
  2. Draw, type or upload your signature.
  3. Tap the page where it belongs, adjust its size, then download the signed PDF.

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Break a PDF into separate files, by page or by range.

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Turn pages a quarter, half or three-quarter turn.

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One click to turn pages upright, straighten scans, drop blank pages and even out sizes and margins.

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Resize pages to A4, Letter or Legal, scaling the content to fit.

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Make the file smaller, with the trade-off you choose.

Repair PDF

Fix a damaged or corrupt PDF that will not open properly.

Sign PDF: questions and answers

Is a drawn signature legally binding?

In many countries an electronic signature added with the signer’s intent is legally valid for everyday agreements. Some documents need a certified digital signature — check what yours requires.

Are my files uploaded?

No. pdf-m8 processes documents in your browser, on your own device. Files are never sent to a server, so confidential documents stay private.