Professional PDF Signature Tool

Add digital signatures to your PDFs with ease. Draw, upload, or use SVG signatures. 100% free and secure.

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Drop your PDF here or click to upload

Supports PDF files up to 50MB

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Signature
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Create Your Signature

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Upload Signature Image

Supports PNG, JPG, JPEG, SVG

Signature Preview

Position Your Signature

Signature

How to Use PDF Signature Pro

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Step 1: Upload PDF

Drag and drop your PDF file or click to browse and select a PDF document from your device.

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Step 2: Create Signature

Choose to draw your signature using your mouse/touchscreen or upload an existing signature image (PNG, JPG, or SVG).

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Step 3: Position & Resize

Drag your signature to the desired location on the PDF and resize it using the resize handle at the bottom-right corner.

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Step 4: Download

Click "Confirm & Download" to get your signed PDF. The original PDF quality is preserved with your signature embedded.

Key Features

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100% Secure

All processing happens in your browser. Your PDFs never leave your device, ensuring complete privacy and security.

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Multi-Format Support

Draw signatures (saved as SVG), upload PNG/JPG images, or use SVG files. All formats are preserved in their original quality.

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Flexible Sizing

Adjust signature size from 20% to 200% before placement, and resize further using the drag handle for perfect positioning.

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Fullscreen Mode

Automatic fullscreen when positioning signatures for better precision and easier placement on your documents.

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Original Quality

Downloads preserve the original PDF quality with embedded signatures. Drawn signatures are vector-based (SVG) for crisp quality at any size.

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Completely Free

No subscriptions, no hidden fees, no watermarks. Professional PDF signing tool that's 100% free and open-source.

Who Can Use This Tool?

Business Professionals

Sign contracts, agreements, proposals, and business documents quickly without printing or scanning.

Remote Workers & Freelancers

Complete client contracts, NDAs, and project agreements from anywhere in the world.

HR & Recruiters

Process employment contracts, offer letters, and onboarding documents efficiently.

Legal Professionals

Sign legal documents, court filings, and client agreements with professional digital signatures.

Real Estate Agents

Expedite property agreements, rental contracts, and closing documents for faster transactions.

Students & Educators

Sign permission slips, recommendation letters, enrollment forms, and academic documents.

Healthcare Providers

Sign patient consent forms, medical records, and administrative documents securely.

Anyone Who Needs to Sign PDFs

Perfect for personal use like loan applications, rental agreements, tax forms, and more.

Frequently Asked Questions (FAQ)

Q: Is this tool really free?
A: Yes! PDF Signature Pro is completely free with no hidden charges, subscriptions, or watermarks. It's an open-source tool built for everyone.
Q: Is my PDF secure? Where is it stored?
A: Your PDF is completely secure. All processing happens directly in your browser using JavaScript. Your files never leave your device and are not uploaded to any server. Once you close the browser tab, everything is deleted from memory.
Q: What signature formats are supported?
A: You can draw signatures (automatically saved as SVG for vector quality), or upload existing signature images in PNG, JPG, JPEG, or SVG format. All formats maintain their original quality in the final PDF.
Q: Are the signatures legally binding?
A: Digital signatures created with this tool can be legally binding depending on your jurisdiction and the document type. For high-security legal documents requiring certificate-based digital signatures, consult with a legal professional or use certified digital signature services.
Q: Can I add multiple signatures to one PDF?
A: Currently, the tool supports adding one signature per session. To add multiple signatures, you can download the signed PDF and re-upload it to add another signature.
Q: What's the maximum PDF file size?
A: The tool works best with PDFs up to 50MB. Larger files may work but could be slower depending on your device's processing power and available memory.
Q: Why use SVG for drawn signatures?
A: SVG (Scalable Vector Graphics) ensures your drawn signature remains crisp and clear at any size. Unlike raster images (PNG/JPG) that can become pixelated when enlarged, SVG maintains perfect quality.
Q: Can I use this on mobile devices?
A: Yes! The tool is fully responsive and works on smartphones and tablets. You can draw signatures using your finger or stylus on touch screens.
Q: Does this work offline?
A: After the initial page load, most functionality works offline since processing happens in your browser. However, you need an internet connection to load the page and external libraries initially.
Q: How do I resize the signature after placing it?
A: Use the size slider (20%-200%) before placing the signature, or drag the circular resize handle at the bottom-right corner of the signature box after placement for fine-tuned adjustments.
Q: What browsers are supported?
A: PDF Signature Pro works on all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your browser.
Q: Can I edit the PDF content with this tool?
A: No, this tool is specifically designed for adding signatures only. It doesn't allow editing of the PDF text or content to maintain document integrity.

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