Is an electronic signature legally valid?

This tool adds a picture of your signature, which is not a certified electronic signature under laws such as eIDAS, ESIGN or UETA. Those require identity verification and audit trails from a dedicated provider. For informal agreements, a pasted signature image is widely used — but for contracts that matter, use a compliant e-signature service.

Does my signature get uploaded?

No. You draw, type or pick your signature, and it is stamped into the PDF locally with pdf-lib. Nothing is transmitted anywhere.

Can I sign on my phone?

Yes. The signature pad works with touch input, so you can sign with a finger or stylus on a phone or tablet.

Sign PDF

Draw, type or upload your signature and stamp it onto your document — without the document ever leaving your browser.

1 · Add your PDF

✍️

Drop a PDF here or click to choose

The file stays on your device.

Not a certified e-signature. This stamps a picture of your signature — great for informal use. For legally binding signatures (eIDAS, ESIGN, UETA) with identity verification and audit trails, use a dedicated e-signature provider.

✓

Runs locally. The signature is captured in this tab and stamped into the PDF with pdf-lib. Your document and your signature are never uploaded, watermarked or limited.

How to sign a PDF

Drop your PDF into the box above.
Create your signature: draw it with the mouse or finger, type your name for a script-style rendering, or upload an image of your signature.
Choose where the signature goes (bottom right is the classic spot) and its size.
Pick which pages to sign, then click Sign PDF and download the result.

Good to know

The signature is added as an image on top of the page — the original text and layout are untouched.
Signing "all pages" stamps every page at the same position; use the page field (for example 1,3) to sign only some.
The output is a standard PDF that opens anywhere, with no watermark.

Frequently asked questions

Can I remove the signature afterwards?

The signature is a normal image object inside the PDF, so a full PDF editor can remove it — just like a signature on paper can be crossed out. Keep your unsigned original until you are happy with the result.

My PDF is rotated — where does the signature land?

The position is calculated from the page's visible (rotated) dimensions, so "bottom right" stays bottom right on screen.

Does this work on a phone?

Yes. The drawing pad accepts touch input, so you can sign directly with a finger or stylus on a phone or tablet.

Sign PDF

1 · Add your PDF

2 · Create your signature

3 · Placement

How to sign a PDF

Good to know

Frequently asked questions

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