Legally Binding • No Sign-up • Private

Sign PDF Online
Free Digital Signature Tool

Create and add your digital signature to PDF documents in seconds. Draw, type, or upload your signature securely—no printing or scanning required.

✍️
Draw or Type
📱
Mobile Ready
🔒
100% Secure
⚖️
Legally Valid

How to Sign a PDF Online

Follow these simple steps to add your signature to any PDF document.

Total time: PT2M
1

Upload PDF Document

Drag and drop the PDF you need to sign into the upload area, or click to select it from your device.

2

Create Your Signature

Draw your signature with your mouse/touchpad, type your name, or upload an image of your signature.

3

Place & Resize

Drag your signature to the correct position on the document and resize it to fit perfectly.

4

Download Signed PDF

Click 'Save' to apply the signature and download your legally binding signed document immediately.

Common Use Cases

Discover how professionals use this tool in real-world scenarios.

Business Contracts

Quickly sign service agreements, NDAs, and partnership contracts without printing or scanning.

Example

Sign and return a vendor contract in under 2 minutes.

HR Documents

Complete offer letters, tax forms, and employee handbooks digitally.

Example

New employees can sign onboarding paperwork remotely.

Freelance Work

Sign work orders and invoices to get projects started or paid faster.

Example

Approve a project scope document with a digital signature.

Personal Forms

Sign lease agreements, permission slips, or waivers from your phone or computer.

Example

Sign a rental lease application without visiting the office.

Pro Tips & Best Practices

Expert advice from Security Specialists

Draw with Touch

quality

For the most natural-looking signature, use a tablet or smartphone touchscreen to draw your signature with your finger.

Transparent Images

quality

If uploading a signature image, use a PNG with a transparent background so it doesn't block text lines.

Multiple Signatures

workflow

You can add multiple signatures (e.g., yours and a witness's) or initials to different pages before saving.

Date & Text

workflow

Use the text tool to add the current date or your printed name alongside your signature for completeness.

Security First

security

Since signing happens in your browser, your private contracts never touch our servers, ensuring maximum confidentiality.

Expert Guidance

These tips come from our team of document processing engineers with over 10 years of combined experience in PDF technology, file conversion, and digital document workflows. We've processed millions of documents and learned what works best.

Why Use Our Online PDF Signer?

Gone are the days of printing, signing, scanning, and emailing documents. Our free online PDF signer allows you to complete contracts and forms directly in your browser, saving you time and paper.

Signature Options

  • Draw: Use your mouse, touchpad, or touchscreen to draw your handwritten signature.
  • Type: Type your name and choose from a variety of handwriting-style fonts.
  • Upload: Upload a photo or scan of your wet-ink signature for a classic look.

Security & Privacy

How We Protect Your Data:

Client-Side Processing:

The signing process occurs entirely within your web browser using WebAssembly. Your document is never uploaded to our servers.

No Data Retention:

Since we don't receive your files, we can't store them. Once you close the tab, your session data is gone forever.

What Our Users Say

Trusted by professionals worldwide for secure, reliable document conversion.

"The PDF to Word conversion is the best I've used. It actually keeps the formatting, which saves me hours of retyping."

J
James Wilson
Legal Assistant

"Signing documents online has never been easier. Secure, simple, and no account needed. My team loves it."

A
Anita Patel
HR Director

"The developer-focused tools like Markdown to Word are a lifesaver. Clean output, no formatting issues. Highly recommended."

D
David Chen
Software Engineer
1M+
Files Converted
100%
Free Forever
0
Files Stored
4.9/5
User Rating

Frequently Asked Questions

Is this signature legally binding?

Yes, electronic signatures are legally recognized in many jurisdictions (like the US ESIGN Act and EU eIDAS) for most business and personal documents.

Do I need to create an account?

No. Our tool is completely free and requires no registration or login. You can sign documents instantly.

Can I sign on my mobile phone?

Absolutely. The tool is mobile-friendly, making it easy to draw your signature using your finger on a touchscreen.

Is my document stored on your server?

No. We use client-side processing. Your document stays on your device throughout the entire signing process.

Can I request signatures from others?

Currently, this tool is for self-signing. You sign the document yourself. To get others to sign, you would typically email them the document.

Is there a limit to how many docs I can sign?

There are no limits. You can sign as many PDF documents as you need for free.

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Last updated: 2025-12-01 • By PDF Converter Pro Team