🔒 Free · No signup · Files stay private

Sign PDF Online Free — Draw, Type, or Upload

Add legally binding signatures to PDFs. Draw, type, or upload.

Sign PDF now → All tools
📁

Drop your file here

or click to browse — your file never leaves your browser

1

Upload PDF

Select the document to sign.

2

Add signature

Draw, type, or upload an image.

3

Position

Place signature anywhere on the document.

4

Download

Get your signed PDF.

✍

Draw

Use mouse or finger on touchscreens.

⌨

Type

Type your name in styled fonts.

🖼

Upload

Use an existing signature image.

Frequently Asked Questions

Is this tool really free?

Yes — 100% free with no signup, no subscription and no limits. All processing happens in your browser.

Are my files stored anywhere?

Never. Processing happens entirely in your browser. Files never leave your device.

Is it secure?

Yes. PDF.js (Mozilla's open-source library) runs locally and ignores scripts embedded in PDFs.

Does it work on mobile?

Yes — iOS Safari 14+, Chrome and Firefox on Android fully supported.

Will there be a watermark?

No. CuroPDF never adds watermarks to your output files.