Draw a signature on any PDF
Sign documents with your mouse, finger, or stylus. Smooth strokes, transparent background, place anywhere — all in your browser.
Drop your PDF here to sign
We'll never upload it — everything stays on your device
document.pdf
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How to Draw & Add a Signature to a PDF
Upload PDF
Drop your PDF — contract, form, agreement, or any document to sign.
Draw Your Signature
Click "Draw New Signature" to open the pad. Use your mouse, finger, or stylus.
Place & Download
Click anywhere on the page to place your signature, then save the PDF.
Frequently Asked Questions
In most jurisdictions, yes — a drawn or hand-signature applied electronically is legally valid for many types of documents (contracts, agreements, invoices, acknowledgments) under laws like the US ESIGN Act, the EU eIDAS regulation, and similar frameworks worldwide.
However, this tool produces a visual signature, not a cryptographically-signed PDF. For legal documents requiring a verified digital signature with a certificate (like notarized documents or high-value contracts), use a dedicated e-signature service with PKI infrastructure.
Yes — the signature pad supports mouse, touchscreen (finger), and stylus input. For best results on desktop, use a stylus or trackpad with fine movement.
Absolutely. Draw your signature once, then click on as many places as you need. Each placement is independent — you can resize and reposition them individually.
Yes — the "Keep signature transparent" option is on by default. Your signature strokes are drawn on a transparent PNG canvas, so only the ink lines appear over the PDF content.
Never. Your signature is drawn on an HTML canvas in your browser, exported as a data URL, and embedded directly into the PDF using pdf-lib. Neither the signature image nor the PDF is transmitted anywhere.