Free Sign PDF Online
Sign PDF documents electronically. Draw, type, or upload your signature. Place it anywhere on your document. Legally binding.
Sign PDF — launching Summer 2026
The in-browser sign pdf tool is in private beta. Join the waitlist to be notified when it goes live and to get early access.
Join the WaitlistKey Sign PDF Features
How to Sign PDF Online
Follow these simple steps to sign pdf your files in seconds.
Upload your PDF
Select the PDF document you need to sign.
Create your signature
Draw your signature using your mouse, trackpad, or touchscreen. Alternatively, type your name and choose from signature font styles, or upload a signature image.
Place and download
Click on the document where you want to place your signature. Resize and position it, then download your signed PDF.
About the Sign PDF Tool
SublimePDF's Sign PDF tool makes it easy to add legally binding electronic signatures to any PDF document. Whether you need to sign a contract, approve a proposal, or complete a form, our tool offers three ways to create your signature: draw it freehand, type it in a beautiful signature font, or upload an image. Place your signature precisely where needed, add dates and initials, and download your signed document — all without printing a single page.
Why Use Sign PDF Online?
Create signatures by drawing, typing, or uploading an image — then place them anywhere on the document with pixel-perfect positioning. Signatures are legally valid under the ESIGN Act (US) and eIDAS (EU). Your signed documents stay on your device; the signature is never stored on any server.
- Completely free — no registration, no watermarks, no hidden fees.
- Private by design — files stay on your device; nothing is uploaded.
- Instant results — browser-based processing means no waiting for server queues.
- Works everywhere — Chrome, Firefox, Safari, and Edge on desktop, tablet, or mobile.
Privacy & Security
Your privacy matters. When you use SublimePDF's Sign PDF tool, all processing happens directly in your web browser using WebAssembly technology. Your files are never uploaded to our servers, never stored, and never seen by anyone but you.
About the PDF Format
PDF (Portable Document Format) was developed by Adobe and standardized as ISO 32000. It preserves document formatting across all devices and platforms, making it the universal standard for sharing and archiving documents.