Sign PDF
Add digital signatures to PDF documents.
How to Sign PDF Online for Free
The Sign PDF tool lets you add your signature to PDF documents quickly and securely. You can draw your signature, type your name in a signature style, or upload an image of your signature. Simply place the signature anywhere on the PDF, resize it if needed, and download the signed document.
It’s perfect for signing contracts, agreements, application forms, invoices, and other important documents without printing or scanning.
Key Benefits
- Sign PDF documents in minutes.
- Draw, type, or upload your signature.
- Place signatures anywhere on the page.
- Resize and rotate your signature.
- Keep the original PDF quality.
- Fast browser-based processing.
- Works on desktop and mobile.
- No registration required.
- Free to use.
- Easy for everyone.
Practical Use Cases
- Sign contracts.
- Approve business documents.
- Sign application forms.
- Complete government forms.
- Sign invoices and quotations.
- Fill out school or college documents.
- Approve HR paperwork.
- Sign rental agreements.
- Send signed PDFs by email.
- Add your signature without printing.
Features
- Draw your signature.
- Type a digital signature.
- Upload a signature image.
- Drag and position the signature.
- Resize and rotate signatures.
- Add multiple signatures.
- Supports multi-page PDFs.
- High-quality PDF output.
- One-click download.
- Browser-based signing.
Why Choose This Tool?
- Sign documents without printing or scanning.
- Fast and simple to use.
- High-quality signed PDFs.
- No software installation required.
- Works directly in your browser.
- Free, secure, and reliable.
How to Use This Tool
Drag your file here or click to choose one from your device. It stays local.
Choose your settings or edit your file directly in the workspace container.
Click the process button and save the new file straight to your downloads.
Why Use This Tool?
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100% Private
Your files never leave your device. All processing happens in your browser using WebAssembly technology.
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Instant Processing
Powered by WebAssembly for lightning fast results, with no server wait times or queues.
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Free Forever
No registration, no subscriptions, no hidden costs. Unlimited usage for everyone.
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Works Everywhere
Compatible with Chrome, Firefox, Safari, Edge on desktop and mobile devices.
Frequently Asked Questions
Is Sign PDF free to use?
Yes, absolutely! Every single tool here is completely free. There are no limits, no hidden subscription costs, and you don't even have to sign up or share your email address. Just use it as much as you need.
Is it safe to sign pdf online?
Yes, it is 100% safe. Most online PDF tools copy your files to their servers, but we don't. We use a browser-based technology called WebAssembly to do all the heavy lifting locally on your own computer. Your files never leave your device.
What file size can I process?
Because the tools process your files directly on your computer, we don't impose any file size limits at all. The only limit is what your computer or phone can handle, meaning you can easily edit files that are 100MB or larger.
Do I need to install any software?
No, you don't need to download or install anything. All you need is a standard web browser (like Chrome, Safari, or Firefox). Just load this page, drag in your file, and you're good to go.