PDF Tools
Sign PDF
Add your signature to a PDF. Draw your signature, type it, or upload an image, then place it on any page. All processing happens in your browser.
100% private — processed in your browser only
Drop a PDF to sign
or click to browse · PDF only
How to use Sign PDF
1
Upload your PDF
Drop a PDF onto the dropzone or click to browse.
2
Create your signature
Draw, type, or upload an image of your signature.
3
Set position and download
Adjust where the signature appears and download the signed PDF.
Your privacy is protected
This tool runs entirely in your browser. Files you upload are never sent to any server — they are processed locally using JavaScript and immediately discarded when you close the page.
Frequently Asked Questions
Is this a legally binding signature?
This tool places an image of your signature on a PDF. It does not create a cryptographic or legally certified e-signature (like DocuSign). For legal enforceability, use a qualified e-signature service.
Is my PDF or signature uploaded?
No. Everything runs in your browser using pdf-lib. No files leave your device.