Drop your PDF here to sign it
Upload a PDF — draw or upload your signature — drag to position — download signed PDF
Click to upload signature image
PNG with transparent background works best
How to Sign a PDF Online for Free
Four steps. No account. Completely free and private.
Upload Your PDF
Drag and drop your PDF onto the upload area or click Select PDF File. The PDF opens instantly at full size, ready to sign.
Create Your Signature
Switch to the Sign panel. Draw your signature using your mouse, trackpad, or finger. Or upload a photo or PNG of your existing signature.
Place & Adjust It
Click Place Signature, then click the PDF where you want it. Drag to reposition. Pull the resize handle to scale. Switch pages and add more signatures as needed.
Download the Signed PDF
Click Download Signed PDF. Your signatures are permanently embedded into the PDF — ready to send, email, or print.
Why Use QwikPDF to Sign a PDF?
The fastest, most private, and completely free way to sign any PDF.
Draw Your Signature
Sign naturally on a canvas using your mouse, trackpad, or touch. Choose from 4 ink colors and 3 pen sizes for a natural look.
Upload a Signature Image
Already have a signature scan or PNG? Upload it directly. PNG files with transparent backgrounds give the cleanest result on any PDF.
Full-Size Page View
The PDF renders at full resolution so you can see exactly where you're placing your signature — no tiny thumbnails, no guessing.
Drag & Resize to Position
After placing your signature, drag it to exactly the right spot. Use the resize handle to scale it to fit the signature line perfectly.
100% Private
Your PDF and signature never leave your browser. Everything is processed locally using pdf-lib — no server, no uploads, no data retention.
Multiple Signatures
Place signatures on multiple pages, add initials and a full signature, or sign on behalf of multiple parties — all in one session.
Frequently Asked Questions
Everything about signing PDF files online for free.
More Free PDF Tools
Everything you need for working with PDF files — all free and browser-based.