Signing a document usually means the print-sign-scan ritual: print the PDF, sign it by hand, scan it back, and hope it's legible. You can skip all of that. Draw your signature once and drop it onto the page — right in your browser, with your document never leaving your device.
Why sign in the browser?
- No printer or scanner needed
- Fast — sign and send in under a minute
- Private — sensitive contracts stay on your device
- Reusable — draw your signature and place it wherever you like
How it works
The Sign PDF tool lets you draw a signature on a pad, then stamps it onto the page as an image using pdf-lib. You drag it to the right spot, resize it, and download the signed file. Everything runs client-side — nothing is uploaded.
Step-by-step
- Open the Sign PDF tool
- Drag and drop the PDF you need to sign
- Draw your signature in the pad, then click Use this signature
- Drag the signature to the right place, pick the page, and adjust its size
- Click Sign & download
Is this a legally binding e-signature?
This tool adds a visible handwritten-style signature image — the same thing you'd get by signing on paper and scanning, but cleaner and faster. That's enough for most everyday agreements, internal approvals, and forms.
It is not a cryptographic digital signature (PKI) with a certificate and tamper-evidence. If you need a legally certified, audit-trailed signature — for regulated contracts, for example — use a dedicated e-signature provider that issues certificates. For everyday signing, the browser tool is quick and private.
Tips
- Sign slowly for a cleaner line, or sign large and shrink it down for smoother edges
- For multi-page documents, pick the correct page before placing the signature
- Combine with Fill PDF Forms to complete a form and sign it
Frequently asked questions
Is my document uploaded? No. Your PDF and signature are handled entirely in your browser — ideal for confidential agreements.
Can I add my signature to more than one page? Place it on one page per pass; run the tool again to sign additional pages.
Is it free? Yes — no account, no watermark, no limits.
Related tools
- Fill PDF Forms — complete fillable forms
- Edit PDF — add text, images, and drawings
- Protect PDF — password-protect the signed file