Sign PDF Online

100% secure, free, and runs in your browser.

100% Browser-Based Local Processing

100% secure, free, and easy to use. Add your signature directly in your browser.

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🔒 Local Processing. Your data never leaves your device.

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🌐 Fully Client-Side. Runs instantly in your browser.

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Browser Based

🚀 Works right in your browser. No installs, no downloads.

Sign a PDF without printing, scanning, or signing up

Sign PDF is a free, browser-based tool for adding your electronic signature to a PDF. Draw, type, or upload a signature, drag it onto the page, and download the signed file. Everything runs on your device, so the document is never uploaded to a server.

When a contract, form, or consent letter lands in your inbox, the old routine — print, sign, scan, send back — wastes time and a printer you may not have. This tool lets you sign the PDF on screen and send it straight back, in a couple of minutes, from a laptop or a phone.

You create your signature one of three ways. Draw it with a mouse, trackpad, or finger; Type your name and pick a signature-style font; or Upload an image of your real ink signature (a transparent PNG looks cleanest). Then drag the signature onto the page where it belongs, or click the spot, and use the corner handles to size it to the signature line. If a multi-page agreement needs your mark in several places, the Apply Signature To options let you put it on the current page, every page, or a custom range like "1-3, 5".

The whole thing runs in your browser. The PDF is read and signed locally and is never uploaded to a server, which matters for contracts, NDAs, and forms with personal details. There's no account to create and no watermark added to the result. When you're done, the signature is flattened into the document and you download a standard signed PDF.

A quick, honest note on the legal side: a typed, drawn, or uploaded signature like this is an electronic signature, which is legally recognized for most everyday agreements under laws such as the US ESIGN Act and the EU's eIDAS. It is different from a certificate-based digital signature, and a few documents — like wills or anything needing notarization — may still require a traditional or qualified signature. When in doubt, check what the specific document requires.

When signing a PDF helps

How to sign a PDF

Signing happens in a simple editor: pages on the left, the signing tools on the right.

Step 1: Open your PDF

Drag a file onto the upload area or click Select PDF File. The editor opens with page thumbnails and the signing canvas.

Step 2: Create your signature

In the right panel choose a tab: Draw (sign on the pad), Type (enter your name and pick a font), or Upload (import a signature image).

Step 3: Place it on the page

Drag the signature preview onto the document, or click where you want it. Use the corner handles to resize it to fit the signature line.

Step 4: Choose where it applies

Under Apply Signature To, pick Current Page Only, All Pages, or Custom Range and enter pages like "1-3, 5".

Step 5: Download

Click Download Signed PDF to save the finished file.

Realistic example. A two-page rental agreement needs your signature on both pages. Draw your signature, drag it onto page one's signature line, set Apply Signature To All Pages, and download — both pages are signed in one step.

Advanced tip. Uploading a photo of your ink signature? Use a transparent PNG so there's no white box around it on the page; the Crop PDF and image tools can tidy a scan first.

Common mistake to avoid. Placing the signature before checking the page — use the page arrows to land on the right page first, especially on long documents.

Recommendation. Need a company seal or stamp rather than a signature? Use Add Stamp to PDF. To lock the file so the signature can't be moved, the signature is already flattened on download.

Frequently Asked Questions

How do I add my signature to a PDF?

Open the PDF, then create a signature in the right panel by drawing it, typing your name in a signature font, or uploading an image. Drag the signature onto the page where it belongs, or click the spot, and resize it with the corner handles. When it's placed, click Download Signed PDF.

Is an electronic signature made here legally binding?

For most everyday agreements, yes. Electronic signatures are legally recognized in many places — including the US under the ESIGN Act and UETA, and the EU under eIDAS — as long as both parties intend to sign and agree to do so electronically. Some documents, like wills or anything needing notarization, may still require a traditional signature, so check the document's requirements.

What's the difference between an electronic signature and a digital signature?

An electronic signature is a drawn, typed, or uploaded mark placed on the document — that's what this tool creates, and it's fine for most agreements. A digital signature is a separate, certificate-based method that uses cryptography to verify identity and detect tampering. High-stakes or regulated documents sometimes require that stronger type; for everyday signing, an electronic signature is enough.

How do I draw, type, or upload my signature?

Use the three tabs in the signature panel. Draw gives you a pad to sign with a mouse, trackpad, or finger. Type turns your name into a signature-style font you can pick. Upload lets you import an image of your real signature — a transparent PNG looks cleanest because it has no white box around it.

Can I apply my signature to all pages or only specific pages?

Both. Under Apply Signature To, choose Current Page Only to sign just the page you're on, All Pages to place it on every page, or Custom Range to target specific pages with an entry like "1-3, 5". This is useful for multi-page contracts that need a mark in more than one place.

Can I move and resize the signature after placing it?

Yes. Drag the signature preview onto the page or click to drop it, then use the corner handles to resize it to fit the signature line. Reposition it as needed before you download. Once you download the signed PDF, the signature is flattened in, so place it where you want it first.

Is it safe to sign confidential documents here?

Yes. The PDF is read and signed inside your browser, so it never leaves your device or gets uploaded to a server. That's important for contracts, NDAs, and forms with personal details. Because there's no server processing your file, there's nothing for a third party to intercept or store, and closing the tab clears it from memory.

Can I sign a PDF on my phone?

Yes. The tool works in any modern browser on iPhone or Android, with no app to install. The signing canvas is large enough to draw with a finger or stylus, and you can drag and resize the signature by touch. This is especially handy on Android, which has no built-in PDF signing like Apple's Markup.

Do I need an account, and is there a watermark?

No account and no watermark. Signing is free, nothing is added to your document, and you're not asked to register or pay before downloading. You create a signature, place it, and download the clean signed file.

Can I sign a password-protected PDF?

Not while it's locked. The tool needs to open the PDF to display and sign it, so remove the password first. Use our Unlock PDF tool to create an unprotected copy, sign that, and re-apply protection afterward with Protect PDF if you need it.

Can the signature be edited or removed after I download?

The signature is flattened into the document when you download, so it becomes part of the page rather than a movable layer. If you need to reposition or replace it, sign a fresh copy of the original PDF instead — it's worth keeping the unsigned original until you're happy with the result.

Can I also add a date, initials, or a stamp?

You can use the Type mode to add text like your initials or a date and place it like a signature. For a company seal or rubber-stamp style mark, use the dedicated Add Stamp to PDF tool, which is built for stamps rather than signatures.

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