Sign Any PDF in Seconds
Upload a lease, a W-9, an offer letter — draw or type your signature, drop it exactly where it belongs, and download. No account, no watermark, no per-document fees.
Drop your PDF here
or click to browse from your device
Add Your Signature
The Free Way to Sign PDFs Without DocuSign or Adobe Sign
At some point almost everyone ends up with a PDF that needs a signature today, not next week, not after a seven-day free trial. A landlord sends a lease. A new client sends over a W-9. A hiring manager emails an offer letter with a "please sign and return by 5pm" note attached. That's usually the exact moment people discover that DocuSign's free plan caps out at three documents a month, with paid plans starting around $10–15 and climbing past $40 once you need real business features, while Adobe Acrobat Sign skips the self-serve free tier almost entirely. This tool exists for that moment: no account, no document limit, no card on file.
How it actually works
Unlike DocuSign or Adobe Sign, this tool never uploads your PDF anywhere. The moment you choose a file, it's read and rendered directly inside your browser tab using PDF.js, the same open-source engine Firefox uses for its built-in PDF viewer. When you draw or type a signature, it's converted into an image and stamped onto the exact spot you drag it to using another open-source library called pdf-lib — all of that runs on your device, and the finished file is assembled and downloaded without ever touching a server. For anything with a Social Security number on it, like a W-9, that's not just convenient. It's genuinely safer than emailing a scanned signature back and forth.
Is signing this way actually legal?
Yes, for the vast majority of documents. Under the federal ESIGN Act (2000) and the Uniform Electronic Transactions Act, which nearly every U.S. state has adopted, an electronic signature carries the same legal weight as one made with a pen for contracts, leases, offer letters, and most everyday business paperwork. The main exceptions are things like wills, divorce and adoption papers, and certain court notices, which typically still require a wet signature. If you're ever unsure whether a specific document qualifies, it's worth a quick check with whoever is requesting it.
Getting a clean, professional result
- Zoom in before dragging your signature onto a small signature line — it makes precise placement much easier.
- Use the small handle in the corner of a placed signature to resize it instead of redrawing it from scratch.
- "Add Text" uses the same placement tool as signatures, so it doubles as a fast way to add today's date next to your name.
- Switch to blue ink from the color swatches if the document specifically asks for a non-black "wet-look" signature.
When you'd still want DocuSign or Adobe Sign
This tool is built for one person signing one document, which covers most of what people actually need on a given afternoon. If your business needs to send a contract to five people in a specific signing order, track who's opened it, collect a legal certificate of completion, or connect e-signatures to a CRM, that's exactly what DocuSign and Adobe Sign are built for, and worth paying for at that point. But for the lease, the W-9, or the offer letter sitting in your inbox right now, this gets it signed and back in the other person's hands in under a minute — free, every time.