Skip to content
sigy.

PDF signing

Sign a PDF online for free

Add your signature to a PDF and download the signed copy. Your document is processed in your browser, without a Sigy account or document upload.

Open the free editor

How to sign your PDF

Open your PDF in the editor. Sigy reads it on your device and shows each page so you can choose where to sign.

  1. Choose a PDF from your device.
  2. Create a signature by drawing, typing, or uploading an image.
  3. Place and resize the signature on the page, then download the signed PDF.

Sign again without starting over

You can save a signature in this browser profile and reuse it on other local documents. Browser data can be cleared, so download completed files you need to keep.

Sign from your phone

The optional phone flow sends a temporary encrypted signature to the desktop. The PDF stays on the desktop; this flow needs an internet connection and expires after five minutes.

Frequently asked questions

Do I need an account to sign a PDF?

No. Open the editor, add your signature, and download the PDF without creating an account.

Is a Sigy signature legally valid?

Electronic signature rules vary by country, document, and transaction. Sigy places a visual signature in your PDF; it does not provide identity verification, a qualified certificate, or a tamper-evident audit trail. Check the recipient's requirements before relying on it for a legal or regulated document.