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How to Sign a PDF on Windows

Windows can't sign PDFs out of the box, and Acrobat wants an account for it. The tool below does it in your browser: draw, place, download.

Add a PDF to sign

or drag and drop a file here

Signing in your browser (no install)

  1. Click Choose file above or drag the PDF from Explorer.
  2. Draw your signature — slow, larger strokes come out smoother with a mouse — and click Use this signature. A touchscreen or pen laptop makes this genuinely easy.
  3. Pick the page, click the preview where the signature goes, adjust the width slider.
  4. Click Sign PDF and download the signed copy. Your original file is untouched.

The PDF and the signature are processed on your PC in the browser tab — nothing is uploaded, and the signature isn't saved anywhere afterwards.

What the tools on your PC actually offer

  • Microsoft Edge — its PDF viewer has a highlighter and an ink pen, so you can freehand-scribble on the page. Usable in a pinch, but you're drawing directly on the document: no do-overs without undoing, no resizing, and mouse scribbles look like mouse scribbles.
  • Free Acrobat Reader — Fill & Sign works, after installing ~500 MB and signing in with an Adobe account. Your signature is stored with Adobe's app.
  • Word — can insert a signature image, but importing a PDF into Word re-flows the layout and often breaks it.

Is this a legal signature?

This places a drawn image — the same class of signature as Edge's ink or Acrobat's basic Fill & Sign, not a certificate-based digital signature. For regulated documents use a dedicated e-signature service. Details on the main Sign PDF page.

Sign PDFs on other devices