Sign a PDF Online Free — No Upload, No Signup
Drop the PDF you need to sign here, or
The file stays on your device — nothing is uploaded.
Drag the dashed box onto the signature line. Arrow keys nudge it, Shift + arrow moves it further.
Sign here
Open a contract, sign it, save it. You draw the signature with a mouse, trackpad, or finger — or type your name in one of the fonts every PDF reader already carries — then drag it to the right spot on a live preview of the actual page. The PDF is parsed, stamped, and rewritten by JavaScript running in this tab, so the file never travels to a server.
How it works
- 1 Open the PDF Drop the file onto the box or click to pick it. It is read locally and the last page — where a signature usually goes — opens first.
- 2 Draw or type your signature Sign on the pad with a mouse, trackpad, or your finger on a phone, or switch to the Type tab and enter your name. Pick the ink colour and pen thickness, and undo a wobbly stroke if you need to.
- 3 Drag it into place The signature appears on the page preview as a draggable box. Move it onto the signature line, set the size with the slider, and use the arrow keys for pixel-level nudges.
- 4 Download the signed file Click Sign PDF and save the result. Tick Stamp on every page first if each page needs initialling.
Your data stays private
All processing happens entirely in your browser. No files, text, or data are ever sent to our servers. You can disconnect from the internet and this tool will still work.
Frequently asked questions
- Is my document uploaded anywhere?
- No. Reading the PDF, rendering the page preview, drawing the signature, and writing the new file all happen in JavaScript inside this tab. Nothing is transmitted — you can disconnect from the network after the page loads and the tool still works. That matters for the things people actually sign: leases, NDAs, offer letters, medical consent forms. Adobe, iLovePDF, and Smallpdf all send the file to their servers first.
- Is this a legally valid signature?
- In most of the world, yes, for ordinary agreements. The US E-SIGN Act and the EU's eIDAS regulation both recognise an electronic signature — a mark you apply to show intent — and neither requires special software. What this tool makes is a simple electronic signature, which is the same category as a signature scanned and pasted into a document. Some transactions demand more: property transfers, wills, and notarised documents often need a qualified certificate-based signature from an accredited provider. If a counterparty specifically asks for a certified or digital ID signature, this is not that.
- What is the difference between this and a digital signature?
- A digital signature wraps the file in cryptography: it binds a certificate to the document so a reader can verify who signed and detect any later edit. This tool stamps visible ink, which is what a counterparty expects to see and what most agreements need. The two are often confused because software vendors use the words interchangeably. If you need the cryptographic kind, you need a certificate from a trust service provider — no browser tool can issue one.
- Does the signature stay sharp when printed or zoomed?
- Yes. A drawn signature is written into the PDF as vector curves, not a pasted image, so it is as crisp at 400% zoom and on paper as it is on screen. It also adds around two kilobytes rather than the hundred-odd a PNG stamp would cost. A typed name is drawn as real text in a built-in font, so it stays selectable and searchable.
- Can I sign on a phone or tablet?
- Yes, and a finger or stylus gives a far better-looking signature than a mouse ever does. The pad takes pointer input, so touch and Apple Pencil both work, and the page preview is draggable by touch too.
- How do I get my signature onto every page?
- Tick Stamp on every page. The signature lands in the same spot on each page, which is the usual request when a solicitor wants every page initialled. Place it with the preview on one page first — the position carries across.
- What happens on a landscape or sideways-scanned page?
- The tool reads each page's rotation flag and applies a matching transform, so the bottom right of the page as you see it is where the signature lands. Plenty of online signers ignore this and print the mark sideways along an edge of a rotated scan.
- Can I type a name in Cyrillic or Greek?
- Not in Type mode. Typed names use the fonts built into every PDF reader, and those only carry the Latin alphabet plus accented Latin-1 letters — so Müller and Gonçalves work, Иванов does not. Draw the signature instead: ink is vector paths and has nothing to do with fonts, so any script works.
- Why does my typed signature not look handwritten?
- Because the fonts guaranteed to be in every PDF reader are Helvetica, Times, and Courier — there is no script face among them. Embedding a handwriting font would mean shipping a font file and bloating the output, so Type mode offers the italic Times faces, which read as a signature well enough for an initial or a name block. For anything that should look hand-signed, use the drawing pad.
- Does signing keep form fields and annotations?
- No. The output is a clean document holding the same pages plus your signature; interactive form fields, comments, and bookmarks are not carried over. If the PDF is a fillable form, fill it in and flatten or print it to PDF first, then sign that. Page content itself is copied byte for byte, so nothing is re-encoded and quality is untouched.
- Can I sign a password-protected PDF?
- Not directly. Encrypted files are rejected with a clear message rather than a silent failure. Open the PDF in a reader, save an unprotected copy, sign that, and re-protect it afterwards if you need to.
- Is there a page or file size limit?
- There is no artificial cap, no daily quota, and no account. The practical limit is your device's memory, since the whole file is held in RAM while it is processed. A few hundred pages is comfortable on an ordinary laptop.