Sign a PDF in your browser
Add your signature to a PDF without printing, scanning or uploading anything. Draw your signature with a mouse or finger, or type your name in a handwriting-style font. Then pick the page, set the size and click on the preview to place it exactly where it belongs. Download the signed PDF — your file never leaves your device.
How it works
- Open your PDF.
- Draw or type your signature.
- Choose the page and size.
- Click on the page preview to position the signature.
- Download — done.
The signature is embedded as a transparent image with an open-source library (pdf-lib), locally on your device.
Honest about e-signatures
This tool adds a visible signature image — what's legally called a simple electronic signature. It's widely accepted for everyday agreements, forms and internal documents, and it's exactly what most "sign PDF" tools produce. It does not add a cryptographic seal or identity proof. For qualified, legally binding signatures (eIDAS QES), you need a certified trust service provider — that's a different category and out of scope for a client-side tool.
Private by default
Because everything runs in your browser, sensitive contracts and agreements stay on your device — no upload, no server, no storage. It even works offline.