Free · No signupRuns in your browserNo file size limit

Sign a PDF Online — Free, No Upload

Drop in a PDF, sign it with your finger, trackpad or keyboard, and drag the signature exactly where it belongs. The signed file downloads straight from your browser — the document is never sent anywhere.

Drop the PDF you need to signThen draw or type your signature and drag it into placeProcessed on your device — never uploaded

How to sign a PDF in 4 steps

1
Open your PDF
Drag a PDF onto the drop zone, or click to pick one from your device.
2
Create your signature
Draw it with your mouse, finger or trackpad, or type your name and pick a handwriting style.
3
Place it on the page
Drag the signature to the signature line and resize it with the corner handle. Move to any page you need.
4
Download the signed PDF
Hit Download. The signature is flattened into the page so it travels with the file.

Worth knowing

Works with signature lines, initials boxes and date fields — place as many marks as the document needs.
Signatures are drawn into the page content, so they survive printing, emailing and re-saving.
An electronic signature like this is legally recognized for most everyday agreements in the US (ESIGN Act), UK and EU (eIDAS). Deeds, wills and some property transfers still require wet ink or a witness.

Your file never leaves this tab

The tool runs entirely in your browser. There is no upload, no server-side copy and no retention policy to take on trust — open your devtools Network tab and watch: nothing goes out.

Sign PDF FAQs

Is my document uploaded to a server?

Nothing is uploaded. The tool runs entirely inside your browser tab using WebAssembly and JavaScript — your file never crosses the network, so there is no server copy to leak, retain or subpoena. You can prove it: open your browser devtools, switch to the Network tab, and run the tool. No request goes out.

Is an electronically signed PDF legally binding?

In most jurisdictions, yes for ordinary contracts. The US ESIGN Act and UETA, the EU eIDAS regulation and the UK Electronic Communications Act all give electronic signatures the same standing as handwritten ones when both parties intend to sign. The common exceptions are wills, certain trusts, some property deeds and court filings — those often still need wet ink, a notary or a witness. Check the rule for your document type and jurisdiction.

Can I sign on my phone?

Yes. On a touchscreen you sign with your finger, which usually produces a better signature than a mouse. The whole tool is touch-first.

Does it work with scanned PDFs?

Yes. It places your signature over the page image, exactly as it would over a text-based PDF.

Can I add a date or my initials too?

Yes — switch to the type mode, enter the text, and drop it anywhere on the page. Add as many marks as you need before downloading.

If the document itself is the problem

In the LegalDraft AI app you can sign a document the moment it is drafted, store signed copies in your document history, and send them straight from your phone.

The app also drafts a contract from your answers and reviews one you were sent, clause by clause. It is free to download and free every month for 3 documents and 2 reviews — this tool stays free either way.

What the app does →What it costs →