Sign PDFFree · No signup · Files stay private

Sign PDF Free Forever
Chrome Extension

Sign and fill any PDF in your browser. Forever free. No upload — your files stay private.

Free Forever · No signup · No watermark

Sign PDF Chrome extension editor with the Edit signature modal open

See how it works

Sign your PDF in 30 seconds.

1. Drop your PDF

Drag, drop, or right-click any PDF link in your browser. No upload, ever.

Sign PDF Chrome extension landing page with a drop-zone for uploading a PDF

2. Add your signature

Draw it, type it, or upload an image. Works on any page of your document.

Signature creation modal with Draw, Type and Upload tabs, showing a hand-drawn signature

3. Download in seconds

Your signed PDF stays on your device. No tracking, no watermark, no signup.

Sign PDF editor with a placed signature and the Download Signed PDF button highlighted

Everything you need to sign a PDF

Draw your signature

Use your mouse or touchscreen to draw a natural signature.

Type in handwritten style

Choose handwritten style and type your name like a real signature.

Upload existing signature

Already have a signature image? Drop it in and use it on any PDF.

Right-click any PDF link

Sign PDFs from Gmail, Drive, or any website with a single right-click.

Add text and dates

Fill in name fields, dates, and notes anywhere on the document.

Your files, your computer

No upload, no cloud storage, no third-party servers. Period.

Why this extension is different

Most PDF tools want your data. We don't.

Other PDF signers

  • Upload files to their servers
  • Require account signup
  • Watermark on the free version
  • Daily limits or paywalls
  • Heavy desktop installation

Sign PDF Extension

  • 100% in your browser
  • No signup, no email
  • No watermark, ever
  • Unlimited, free forever
  • One-click Chrome install

How to install

Install in less than 30 seconds.

Click Add to Chrome button on Sign PDF extension page in Chrome Web Store

1. Click "Add to Chrome"

Hit the blue button at the top of this page. You'll be redirected to the Chrome Web Store.

Confirm installation dialog asking to add Sign PDF Signature eSign Tool extension

2. Confirm installation

Chrome will ask you to confirm. Click "Add extension" — it takes one second.

Pin Sign PDF extension to Chrome toolbar from extensions menu

3. Pin to your toolbar

Open the extensions menu (puzzle icon) and click the pin next to Sign PDF for quick access.

Frequently asked questions

Yes — Sign PDF will remain free forever. Sign unlimited PDFs, no signup, no credit card, no paywall. Even if we add optional Pro features in the future, signing PDFs will always be free.

Sign your first PDF in 30 seconds

Free forever · No signup needed

Part of the SignMyPDF family. We also offer free web tools for Sign, Fill, Protect, Merge, Compress, and Split PDFs — no installation required.