eSign PDF
Use this free online eSign PDF tool to add a signature to any PDF — drawn with your mouse or touchscreen, typed in a script font, or uploaded from an image. It is useful for signing contracts, NDAs, school permission forms, lease agreements, employment paperwork and any routine document that asks for a signature. Drop the PDF into the upload zone, create your signature, drag it to the right spot on the page, and download the signed file. Signing runs in your browser using pdf-lib — your documents never leave your device, which matters for the sensitive paperwork that usually needs signing. No sign-up, no watermark.
Click to choose or drag & drop a PDF
Disclaimer
This is a visual signature tool. It is suitable for everyday documents but does not produce a cryptographically signed PDF. For legally certified electronic signatures, use a qualified provider (DocuSign, Adobe Sign, etc.).
How to Use This eSign PDF
Signing a PDF takes a drop, a signature and a drag.
- Drop the PDF into the upload zone or click to choose a file.
- Create your signature — draw it in the canvas, type it in a handwriting-style font, or upload a PNG.
- Drag the signature to the correct position on the page; resize using the corner handles.
- Optionally add the date or initials nearby using the same drag-and-drop interface.
- Click Sign & Download to save the signed PDF; the original is unchanged.
How This eSign PDF Works
Adding a signature to a PDF means embedding a graphic that represents your handwritten mark on top of the page. The tool collects your signature in one of three ways — a Canvas drawing area for mouse or touch input, a text input rendered in a handwriting font, or an uploaded PNG — and converts it to a transparent image. pdf-lib then loads the input PDF in your browser, walks the chosen page, embeds the signature as an image XObject, and draws it at the position and size you set via drag-and-drop. The original page content is untouched; the signature sits on top as an overlay, which keeps the underlying text selectable. The result is a regular PDF that opens in every reader without special software. Because everything runs locally there is no upload, no waiting, and no risk of your contract or NDA passing through a third-party service. The output is suitable for routine business and personal use; for legally regulated agreements (financial services, real estate transfers, certain employment contracts) check whether your jurisdiction requires a digital certificate-based signature instead — those need a dedicated provider like DocuSign.
Last updated: May 2026.
Frequently Asked Questions
Is this signature legally binding?
A typed or drawn signature on an everyday document is generally accepted in many jurisdictions. For binding contracts or court documents, use a qualified electronic signature service.
Will the signature look like my real handwriting?
If you draw it with a stylus or trackpad, yes. The typed option uses a standard italic font — recognisable as a "signature" but not your handwriting.
Can I sign multiple pages?
Yes — switch the page selector to a different page, click to place a new signature, then re-apply.
Is the document tamper-proof after signing?
No — this is a visual signature. For tamper-evidence, use a service that adds a cryptographic hash of the document.
Are my files uploaded?
No — signing happens entirely in your browser. The PDF and your signature image never leave your device.