Is this a legally binding electronic signature?

That depends on your jurisdiction and the document — many everyday forms accept a signature image, and many contracts need certificate-based digital signatures. What we can tell you precisely is what this tool produces: a picture of your signature placed on the page, with no certificate and no tamper-detection.

Can the signature be moved or copied by someone else?

Yes — it is ordinary page content, like ink on paper after a photocopier. That is exactly why we say "picture", not "digital signature".

Is my signature or document uploaded?

No. Drawing, placement, and saving all happen in your browser — a signature is precisely the kind of thing that shouldn’t travel.

Sign a PDF — place a picture of your signature

Draw once, place it where the form wants it, download. Exactly what “sign it and email it back” needs — and we’re plain about what it is not.

Placing needs the page drawn on screen, so this tool loads the PDF rendering engine (≈0.5 MB, from this site) on first use.

This tool does its work with JavaScript, entirely inside your browser — that is the design: no upload, no server, your file never leaves your device. With JavaScript off, the tool can’t run, but every claim on this page still can be checked: the source is public, and the page itself makes no third-party requests of any kind.

Drop a PDF here — it stays on this device. The controls you get come from the file, not from a menu.

All the tools

What this is — and is not

This places a picture of your signature. It is not a digital signature: no certificate, no verified identity, no tamper-detection. Anyone with a PDF editor could move, copy, or delete it — just as they could with ink on paper after a photocopier. For "sign the permission slip and email it back," that is precisely enough. For contracts that need cryptographic proof of who signed and that nothing changed since, you need certificate-based signing infrastructure, which is a different product — and we won't let the word "sign" do work the feature hasn't earned.

The transparent-background detail

Your drawn signature is stored with real transparency, so it never becomes a white sticker covering the line it sits on — the form's line shows through under your ink, the way a pen works. (A JPEG signature image is refused for exactly that reason: JPEG has no transparency, so it would arrive as a white box hiding the very line it should sit on.)

Questions people actually ask

Is this a legally binding electronic signature?: That depends on your jurisdiction and the document — many everyday forms accept a signature image, and many contracts need certificate-based digital signatures. What we can tell you precisely is what this tool produces: a picture of your signature placed on the page, with no certificate and no tamper-detection.
Can the signature be moved or copied by someone else?: Yes — it is ordinary page content, like ink on paper after a photocopier. That is exactly why we say "picture", not "digital signature".
Is my signature or document uploaded?: No. Drawing, placement, and saving all happen in your browser — a signature is precisely the kind of thing that shouldn’t travel.

We invite you to double-check our work

Open your browser’s developer tools, switch to the Network tab, and run any tool on this page and nothing leaves your device.

The whole source is on GitHub. Read it.

Found a bug, or a claim that doesn’t hold up? Tell us: pdf@geodeforge.com. An example file turns a guess into a quick fix — and if yours is too sensitive to share, we understand; a description still helps.

That’s the difference between a privacy policy and a fact.

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GeodeForge is a one-person studio that crafts open-source tools that do what they say, and let you check — in your browser.

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