Sign PDF

Add legally recognized digital signatures to your PDF documents. Draw, type, or upload your signature with ease.

Sign your PDF

Select a PDF file and create your signature.

Drop your PDF file here

or browse from your device

Press Alt+U For File Upload
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How to Use Sign PDF

No complicated setup. Add your document, create a signature, and download the signed file.

1STEP ONE

Upload

Select the PDF document you need to sign

2STEP TWO

Create Signature

Draw, type, or upload your signature

3STEP THREE

Download

Get your signed PDF

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Sign PDF

Add legally recognized digital signatures to your PDF documents. Draw, type, or upload your signature with ease.

What is this tool?

Sign PDF is a secure online PDF tool that lets you add professional digital signatures to your documents without printing or scanning. As a pure browser-based PDF tool, all signature processing happens locally on your device — no server uploads, ensuring complete privacy and security. This free PDF editor allows you to draw your signature with mouse/touch, type a stylized signature, or upload an image of your handwritten signature. Perfect for contracts, agreements, invoices, and any document requiring your approval.

How to use Sign PDF tool?

1 Upload PDF file — Drag & drop or select the PDF document you need to sign.
2 Create your signature — Draw with mouse/touch, type your name (choose font), or upload a signature image.
3 Place signature — Click anywhere on the document to position your signature, resize and adjust as needed.
4 Download signed PDF — Save your digitally signed document ready for sharing or submission.

Why use this tool?

  • 100% free — No premium tiers or hidden costs
  • No login required — Use instantly without registration
  • Fast processing — Sign documents in seconds
  • Works on all devices — Mobile, tablet, desktop
  • Secure browser-based processing — Zero data transfer

Premium Features

  • Drag & drop support
  • High quality output (preserve original formatting)
  • Unlimited usage — sign unlimited PDFs
  • Lightweight performance
  • Draw, type, or upload signature options

Use Cases — Who benefits from Sign PDF?

Students

Sign permission slips, enrollment forms, and academic agreements without printing or scanning.

Office work

Approve contracts, sign internal documents, and authorize purchase orders electronically.

Resume / document handling

Sign cover letters, offer letters, and employment agreements digitally before submission.

Business documents

Execute client contracts, non-disclosure agreements, and vendor forms with professional digital signatures.

Professional workflows

Freelancers, consultants, and remote workers can sign proposals and invoices instantly.

Mobile signing

Sign documents on-the-go from your phone — perfect for real estate, insurance, or service agreements.

Frequently Asked Questions about Sign PDF

How does Sign PDF tool create digital signatures?
Sign PDF tool allows you to create signatures in three ways: draw with your mouse or finger, type your name with professional fonts, or upload an image of your handwritten signature. The signature is then embedded directly into your PDF as a transparent overlay.
Is Sign PDF legally binding?
Yes — digital signatures created with Sign PDF are legally recognized in most jurisdictions under e-signature laws (ESIGN Act, eIDAS). Your signature image serves as evidence of intent, similar to signing a physical document. We recommend keeping the original signed PDF as proof.
Can I add multiple signatures to one document?
Absolutely! Sign PDF lets you add signatures from multiple people. Perfect for multi-party contracts, approval workflows, or documents requiring witness signatures. You can also add initials, dates, and text fields alongside signatures.
Does Sign PDF affect the original PDF quality?
No quality loss — your original document content remains untouched. Signatures are added as transparent overlays without re-compressing images or altering existing content. Text, graphics, and formatting stay exactly as they were.
Is Sign PDF secure for confidential documents?
100% secure. As a true browser-based PDF tool, your PDF and signature never leave your device. All signing processing happens locally — ideal for sensitive contracts, legal agreements, or personal documents. No uploads, no privacy risks, no third-party servers.
Can I sign PDFs on my phone or tablet?
Yes! Our free PDF editor is fully responsive and works perfectly on iOS and Android. Draw your signature with your finger or stylus, place it on the document, and download — all without installing any app. Perfect for signing documents while traveling or away from your computer.
The ultimate PDF management solution — Sign PDF instantly

Looking for a reliable online PDF tool to sign documents electronically? Our free PDF editor delivers instant, legally recognized digital signatures without watermarks or signups. As leading browser based PDF tools, we guarantee fast PDF processing directly on your device — keeping your documents and signature private and secure. Whether you're a student signing enrollment forms, a professional approving contracts, or a business owner executing agreements, this PDF management tool eliminates printing, scanning, and faxing. No uploads, unlimited use, and complete privacy — experience effortless PDF signing today.