Draw a signature, drag it onto the page, save a signed PDF. Free, private, runs in your browser.
100% private — your files never leave your browser. All processing happens locally on your device.
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Draw your signature, drag it onto any page, save the signed PDF. Files never leave your device.
Most PDF signing tools upload your file to a server, wait for you to draw the signature on their page, then give you back a copy. That model has been standard for a decade, but it has one obvious flaw: every document you sign — including leases, NDAs, medical forms, financial agreements — sits on a third party's disk for the duration of the session, and often longer. The client-side approach we use keeps the file on your device at every step. The pages are rendered in your browser. The signature is drawn on a canvas in your browser. The stamp is written back into the PDF by pdf-lib, also in your browser. Nothing is transmitted.
When you draw on the signature pad, it records your strokes as vector paths. On save, the tool rasterises those strokes to a transparent PNG, trims the empty margins, then embeds the PNG as an image on the page you picked, at the position and width you dragged. The underlying pdf-lib library writes a new image XObject into the PDF and places it at the requested coordinates. The rest of the PDF — text, other images, metadata — is preserved exactly. You can re-sign or add a second signature by re-running the flow on the already-signed PDF.
A drawn signature (the kind this tool produces) reads as more personal and is harder to fake than a typed font. It's what you'd get from a tablet-signing flow at a bank. Typed cursive fonts are easier and good enough for many internal workflows; if you prefer that, generate your signature elsewhere as a PNG and use an image-on-PDF tool to stamp it. For pen-drawn results, use your phone — touch input beats mouse drawing.
In most jurisdictions, a visible signature stamp has the same legal weight as a pen-and-paper signature for everyday agreements — rental forms, employment docs, internal approvals. What a pure visible stamp does NOT provide is a cryptographic audit trail proving which keys signed it and when. For that level (eIDAS advanced e-signature, HIPAA, SEC filings), use a certified e-signature service that issues digital certificates. For everything else, a visible signature is fine and often expected.
No. Everything — rendering the pages, drawing the signature, stamping it into the PDF — runs in your browser. Your file never leaves your device.
A visible signature stamp is sufficient for many everyday agreements (forms, rental docs, internal approvals). For contracts requiring digital certificates (eIDAS, DocuSign-style audit trails), use a certified e-signature service.
Yes. Use the page picker to navigate to the page you want, then drag your signature anywhere on that page before saving.
Yes — the signature pad supports touch input. Just use your finger to draw on the canvas.