How to Sign a PDF Online for Free (Without Adobe or an Account)

Someone sends you a PDF. You need to sign it and send it back. The easy path is to print, sign with a pen, scan, and email. Twenty minutes later you find a scanner that works and a phone that focuses. There is a better way that takes under a minute and does not involve a printer.

This guide walks through signing a PDF directly in your browser, drawing or typing your signature, and downloading the signed file. Nothing leaves your device.

The fast version

1. Open the Sign PDF tool.
2. Drag your PDF into the page.
3. On the right, choose Draw (use your trackpad, mouse, or finger) or Type (pick a cursive font and type your name).
4. Click on the page preview where you want the signature to land.
5. Drag the signature to fine-tune the position. Drag the small corner handle to resize it.
6. Hit Apply & Download.

That is the whole flow. You can place the same signature on multiple pages, or use different signatures on the same page if you need a witness slot too.

Drawing versus typing

Most people default to typing because it is faster, but a drawn signature looks more like your real one and tends to be accepted without question on contracts, NDAs, rental agreements, and other documents that get human-read.

Use type when:

• The document is informal (delivery confirmations, internal forms, friend-of-a-friend invoices).
• You are signing on a phone and drawing on a small screen is awkward.
• The signature field is tiny and a typed cursive will look cleaner.

Use draw when:

• The recipient knows what your real signature looks like.
• The document is legally weighty (job offers, leases, settlement agreements).
• You want your signature to match other documents you have signed.

If you draw with a trackpad and it looks shaky, just try again. The Clear button in the signature pad resets and you can do it twenty times until you get one you like.

Where to actually place the signature

This sounds obvious but it trips people up. PDFs from law firms and HR teams often have a small line and "Sign here" text. Place your signature so the baseline sits on the line, not floating above it. Drag the corner handle to scale it to roughly the line's length.

For dated signatures, place the signature first, then use the same tool to drop a typed date next to it. Or sign first, then run the signed PDF through the Page Numbers tool if you also need numbering for a multi-page document.

Is a digital signature legal?

For most contracts in most countries, yes. Electronic signatures (including a drawn or typed one) are recognised by the E-SIGN Act in the United States, eIDAS in the EU, and similar laws in Canada, Australia, India, and the UK.

There are exceptions. Wills, certain real estate deeds, court orders, and some family law documents may require a wet (ink) signature plus a notary or witness. If you are not sure, ask the receiving party what they accept. Most of the time the answer is "any signed PDF works."

For high-stakes or regulated documents (loan agreements, employment contracts in some jurisdictions), companies sometimes use platforms like DocuSign that add a signed audit trail. Our tool does not do that. It signs the PDF the same way you would with Adobe Reader's signature field: it embeds a visible image of your signature on the page. That is enough for the vast majority of everyday situations.

The privacy bit

When you sign a contract on a website that uploads your file, the file sits on their server. Sometimes for hours. Sometimes for days. Sometimes forever. The file contains your signature and probably your home address, salary, or whatever else is on the document. That is a lot of trust to give a random website.

PDF Toolbox does not upload anything. Open your browser's network tab while you sign. You will see exactly zero uploads of your PDF. The whole thing runs in JavaScript on your device using libraries called pdf-lib and pdfjs that are open source and well-audited.

If you want to verify this for yourself, open DevTools (F12 in most browsers) before you start, switch to Network, drop in your file, do the signing, and watch. The only network requests will be for the static assets that make up the page itself.

A few tips that save time

• Save your signature for later. The signature stays in memory while the page is open, so you can sign ten different PDFs in a row without redrawing.
• Use the resize handle. Default size fits most signature lines, but tiny lines need a smaller signature and large blank spaces look right with a bigger one.
• Place at the end first. Many contracts have a signature block at the end. Jump to the last page, place there, then add initials on other pages if required.
• For multi-party documents, sign your part first, save, and send. Each party signs in turn. There is no need to coordinate live.

Try it

Open the Sign PDF tool and sign your first PDF in under a minute. Free, no signup, nothing uploaded.