Free PDF Signer Online — Add Your Signature to Any PDF Instantly

PDF Signature Guide

Why Use a Free Online PDF Signature Tool?

Printing a document just to sign it and scan it back is slow, wasteful, and unnecessary. With this free tool you can sign any PDF in seconds — directly in your browser. Whether you're a freelancer signing a client contract, a landlord countersigning a lease, or an employee returning a form, the result is a legally equivalent, clean PDF with your signature embedded — no printing, no scanning, no software to install.

• Draw, type, or upload: Three ways to create your signature — whichever feels most natural to you.
• Place anywhere: Choose the exact page and position — nine preset spots or fine-tune with size controls.
• 100% private: Your PDF is never uploaded to any server. All processing happens in your browser.
• No account needed: No email address, no sign-up, no subscription. Open the page and start signing.
• No watermarks: The signed PDF is clean — no branding or overlays added anywhere.

How to Sign a PDF Online Free — 3 Steps

Adding your signature to a PDF takes under a minute. Follow these three steps.

Step 1: Upload Your PDF

Drag and drop your PDF into the upload area, or click "Select PDF File" to browse. Files up to 50 MB are supported. The file is loaded entirely in your browser — nothing is sent to any server.

Step 2: Create Your Signature

Choose how to create your signature. Use Draw to sign with your mouse or finger on the canvas. Use Type to enter your name and pick a cursive or serif font. Use Upload to import a PNG or JPG image of your existing signature — a transparent PNG gives the cleanest result.

Step 3: Place and Download

Select which page to sign and where to place the signature using the nine-position grid. Choose a size — Small, Medium, or Large. Click "Sign PDF" and download the result. The signature is permanently embedded in the PDF at your chosen location.

Key Features of This Free PDF Signer

Draw Your Signature with a Mouse or Finger

The drawing canvas supports smooth freehand input via mouse on desktop or finger on touchscreen. Strokes are rendered with rounded line caps for a natural look. If you make a mistake, click "Clear" to start over before applying the signature.

Type Your Signature in a Cursive Font

Not a fan of drawing? Type your name and choose from several handwriting-style fonts. The result looks like a real signature and embeds cleanly into the PDF without any rasterisation artefacts.

Upload an Existing Signature Image

If you already have a scanned or photographed signature saved as a PNG or JPG, upload it directly. PNG files with a transparent background produce the cleanest result because the white background is removed automatically.

100% Private — No Server Upload

Every step — loading the PDF, rendering the signature, and rebuilding the file — happens inside your browser. Your documents are never transmitted anywhere. This makes the tool safe for contracts, NDAs, tax forms, and any other sensitive document you wouldn't want to send to a cloud service.

Frequently Asked Questions

Is a drawn PDF signature legally valid?

In most jurisdictions, an electronic signature is legally equivalent to a handwritten one under laws such as the ESIGN Act (US) and eIDAS (EU). A drawn or typed signature embedded in a PDF is sufficient for most business and personal agreements — contracts, offer letters, lease agreements, and consent forms. For high-stakes legal instruments like wills or deeds, consult a solicitor about your specific requirements.

Will my signature be added to every page?

No — the signature is placed on the single page you select. Use the page number input to choose which page to sign. If you need to sign multiple pages, sign the PDF, then upload the result again to add another signature on a different page.

What image format works best for uploaded signatures?

A PNG with a transparent background is ideal — the signature will sit cleanly on the PDF without a white box around it. If you only have a JPG, the tool still works but you may see a white rectangular background behind the signature on the page.

Can I sign a password-protected PDF?

No — password-protected PDFs cannot be modified. Use the PDF Unlocker first to remove the password, then return here to sign the unlocked file.

Is my document sent to a server or stored anywhere?

No. The entire signing process runs in your browser using JavaScript and the Canvas API. Your PDF never leaves your device. When you close the tab, nothing is retained.

Does this work on iPhone and Android?

Yes. The tool works in Safari on iPhone and Chrome on Android. The drawing canvas supports touch input, so you can sign with your finger directly on your phone screen. Tap "Select PDF File" to pick a file from Files, Google Drive, or your downloads.

Can I move or resize the signature after placing it?

Not after downloading — the signature is permanently embedded. Before signing, use the Size control (Small / Medium / Large) and the nine-position grid to adjust placement. If the result isn't quite right, simply sign again from the original file.

Related Tools

Looking for more PDF tools? Browse all PDF utilities on QuickTooly, use the PDF Unlocker to remove a password before signing, or the PDF Compressor to reduce the file size after signing.