Sign PDF Online Free

Add an image signature (PNG/JPG) to your PDF — 100% in your browser. Not a digital certificate.

Upload PDF and signature image

Drop your PDF and a PNG or JPG of your signature, then place it on the page.

Drop PDF

Drop signature PNG/JPG

Your files never leave your device — processed locally in your browser.

Sign Your PDF in 3 Steps

Place your signature image — free and private.

  1. Step 1

    Upload PDF & Signature

    Drop your PDF and a PNG or JPG image of your signature.

  2. Step 2

    Choose Placement

    Pick last page or all pages, and adjust signature size.

  3. Step 3

    Download Signed PDF

    Signature is placed locally — save the finished document.

Benefits of Signing PDF Online

Add your signature quickly without desktop software.

Image Signature

Place a PNG or JPG of your handwritten signature on the PDF.

Files Stay Local

PDF and signature image never leave your device.

Free Signing

Sign unlimited PDFs at no cost.

Last Page or All Pages

Place signature on the last page or stamp every page.

Adjustable Size

Scale your signature to fit the document.

Instant Download

Get your signed PDF in seconds.

No Signup

Start signing immediately.

Digital Certificates on Desktop

Need certified digital signatures? PDF Champ desktop supports them.

How to sign a PDF with an image

  1. Upload PDF and signature image — Drop your PDF and a PNG/JPG of your signature.
  2. Choose page and size — Pick last page, all pages, or scale as needed.
  3. Click Sign & Download — Signature is placed in your browser.
  4. Save the signed PDF — Download the finished document.

Frequently asked questions

Is this a legal digital signature?

No. This places a picture of your signature — not a certified digital signature certificate.

What image format works best?

PNG with transparent background gives the cleanest result.

Are my files uploaded?

No. PDF and signature image stay on your device.

PDF Champ — Online & Desktop

Choose Your PDF Champ Experience

Free browser tools for everyday tasks, or download the full desktop suite for advanced PDF power on Windows and Mac.

Desktop · Windows

PDF Champ for Windows

Complete desktop PDF suite — merge, split, lock, unlock, convert, compress, rotate, crop, watermark & sign.

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Desktop · Mac

PDF Champ for Mac

Native macOS app with the same powerful PDF tools and a smooth, integrated desktop experience.

  • Designed for macOS
  • Merge, split, convert & secure
  • Full offline processing
  • Free trial available