Sign PDF Online – Free & No Signup

Upload a PDF, add your electronic signature, and download instantly. No signup, no software installation required.

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Drop your PDF here or click to upload

Start editing your PDF in seconds

Add Electronic Signatures to PDF

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Add Signature to PDF

Add typed or drawn electronic signatures to your PDF documents. Customize colors and styles to match your needs.

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Highlight & Draw

Highlight important sections or draw freely on your PDF with our intuitive tools.

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100% Private & Secure

All processing happens in your browser. Your files are never stored in our servers.

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Fast & Easy

No installation required. Works on any device with a modern web browser.

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Free to use

Download with watermark or upgrade to remove it.

How It Works

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Upload Your PDF

Drag and drop or click to upload your PDF file

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Add Signature

Add your electronic signature or initials to every page

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Download

Download your signed PDF instantly, ready to use

Secure Online PDF Signing

Our free online PDF signing tool allows you to add electronic signatures to PDF documents directly in your browser. Whether you need to sign a contract, invoice, or agreement, you can upload your PDF, sign it, and download the signed document in seconds.

Auto Initial PDF – Initial All Pages

Our unique feature allows you to add initials to all pages of your PDF automatically. Perfect for document review, acknowledgment, and bulk initialing. Simply place your initials once, then replicate them to every page with a single click. Ideal for initialing pages for acknowledgment, document review workflows, and multi-page contracts.

Need to initial multiple pages? Visit our dedicated guide for initialing PDF all pages to learn more about this feature and see step-by-step instructions for bulk initialing contracts, NDAs, and legal documents.

Is Signing a PDF Online Legal?

Electronic signatures are legally valid in most countries, including the US and EU, under laws such as ESIGN and eIDAS. Our tool allows you to create simple electronic signatures suitable for most personal and business documents.

Is It Safe to Sign PDFs Here?

Your privacy is important. Files are processed locally in your browser and are not stored permanently on our servers. All processing happens client-side, ensuring your documents never leave your device until you download them.

How It Works – Security & Privacy

When you upload a PDF, it’s processed entirely in your web browser using JavaScript. The file is never sent to our servers for processing. Your signed PDF is generated locally and downloaded directly to your device.

Frequently Asked Questions

Yes, with watermark. Premium removes it.

Yes, all in-browser. Your files are processed locally and never sent to our servers.

Yes, also you can initial all pages at once! Simply place your initials once, then use the "All Pages" button to replicate them to every page automatically. See our guide on initialing PDF all pages for detailed instructions and use cases.

What Our Users Say

"Perfect for signing contracts! The initials feature saved me so much time on my 50-page document. Love that it’s all in-browser."

Sarah M. Business Owner

"Finally, a PDF signer that doesn’t require installation or signup. The auto-initial feature is a game-changer for document review!"

James T. Legal Assistant

"I use this weekly for invoices. Super fast, secure, and the fact that everything happens in my browser gives me peace of mind."

Maria L. Freelancer

"Best free PDF signer I’ve found. The ability to add initials to all pages at once is brilliant. No watermarks in premium is worth it!"

David K. Project Manager