Sign PDF Online Free – Add Electronic Signature to PDF

How to Use Sign PDF Online Free

1
Upload Document Select or drag & drop the agreement, lease, or form that requires your signature.
2
Create Signature Draw your signature on the smooth drawing canvas using your finger, stylus, or mouse.
3
Position & Resize Drag your signature onto the exact signature line on the document page preview.
4
Apply & Download Click "Apply & Download" to permanently stamp your signature and save the file.

✓ Smooth Touch & Stylus Drawing Canvas — Captures clean, natural signature strokes on mobile and desktop.
✓ Draggable & Resizable Stamping — Position your signature exactly where needed on any page.
✓ Multi-Page Document Navigation — Sign single agreements or multi-page corporate contracts.
✓ 100% Private In-Browser Processing — Confidential employment agreements and financial contracts never leave your device.

All processing occurs 100% on your device using client-side WebAssembly. No files are uploaded to our servers.

Yes! Electronic signatures are widely accepted for business contracts, freelance agreements, rental leases, and routine commercial transactions.

Never. The entire signing and rendering process occurs locally in your browser memory. Your contracts and signatures remain 100% private.

Yes! You can use our Add Text to PDF or PDF Editor tools to insert dates, names, and notes alongside your signature.