Sign PDF Online
Upload your PDF and add your digital signature to any page instantly.
The Easiest Way to Sign PDFs Online
Sign contracts, agreements, and forms in seconds without printing or scanning.
OpenToolbox PDF Signer allows you to securely add your signature to any PDF document directly in your browser. Unlike other services that force you to upload your sensitive files to a server, we process everything locally on your device.
Your contracts never leave your computer, ensuring 100% privacy and security.
Key Features
- 🔒 100% Private: Your files are processed locally in your browser, not on our servers.
- ✍️ Multiple Signatures: Upload an image or draw your signature freshly.
- 📑 Multi-Page Support: Apply your signature to one page or all pages at once.
- 🚫 No Watermarks: Download professional, clean documents for free.
- ⚡ Instant Download: No email required. Get your signed file correctly.
How to Use
Click Select PDF to open the document you want to sign.
Navigate to the correct page using the pagination controls.
Click Upload Signature (Image) or use the Draw tool (if available).
Drag and drop the signature to the correct position on the page.
Click Download Signed PDF to save your finalized document.
