Sign PDF
Document
Select your files
Supports PDF files up to 100MB
Signature (PNG with transparency works best)
Select your files
Supports PNG, JPG, JPEG, WEBP
Page
Size
Quick Placement
Or drag the signature directly on the preview to place it exactly.
Live Preview
Upload a PDF to preview
Your document and signature preview will appear here.
Sign PDF Online Free
Drop your signature onto any page of a PDF — choose the page, placement, and size in a couple of clicks.
How to Use Sign PDF
1
Upload your PDF and a signature image (PNG with transparency works best).
2
Pick the page, placement, and size.
3
Download your signed PDF.
Frequently Asked Questions
What signature image should I use?
A PNG with a transparent background gives the cleanest result, but any JPG or PNG of your signature will work.
Are my files secure?
Yes. Files are processed over secure connections and are not stored after your session.
Do I need to install anything?
No. Everything runs in your browser on any device.