Sign PDF

Add your signature to PDF — draw, upload, or type

🔥 Popular🔒 Browser Only
🔒Your document never leaves your device. All signature creation and PDF embedding is processed entirely in your browser. No data is sent to our servers.
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Free PDF Signing Software — Sign PDF Files Online

DocTools.CC is free PDF signing software that lets you add an electronic signature to any PDF document directly in your browser. Draw, upload, or type your signature — then place it anywhere on the page. No sign up, no watermarks, and no cost.

Three Ways to Create Your Signature

  • Draw — Use your mouse, trackpad, or touchscreen to draw your signature freehand. Ideal for a natural, handwritten look.
  • Upload — Upload a scanned image or photo of your signature. The tool removes the background automatically so only your signature appears on the document.
  • Type — Type your name and choose from several professional font styles. Quick and clean for business documents.

Privacy-First Signing

Unlike most PDF signing tools that upload your document to a server, DocTools.CC processes everything locally in your browser. Your PDF and your signature never leave your device — making this the most private way to fill and sign a PDF online for free.

How to Sign a PDF

  1. Upload your PDF file
  2. Create your signature (draw, upload, or type)
  3. Drag the signature to the correct position on the page
  4. Resize if needed using the corner handles
  5. Click Apply to download your signed PDF

Key Features

  • 100% free — no sign up, no watermarks, no limits
  • Processed entirely in your browser — nothing leaves your device
  • Draw, upload, or type your electronic signature
  • Drag and drop placement with resize handles
  • Multiple signatures on one document supported
  • Works on desktop, tablet, and phone
  • Files automatically deleted after 30 minutes

Frequently Asked Questions

Everything you need to know about this tool

Upload your PDF, then choose one of three ways to add your signature: draw it with your mouse or finger, upload a photo of your signature, or type your name and pick a font style. Drag the signature to the right position on the page, resize if needed, and click Apply to download your signed PDF.

Yes — DocTools.CC is completely free PDF signing software with no daily limits, no watermarks, and no sign-up required. It runs in your browser with no daily limits, watermarks, or account requirement.

You can create a signature in three ways: Draw your signature freehand using your mouse or touchscreen, upload a scanned image of your handwritten signature, or type your name and select from several professional font styles. Each method produces a clean, clear signature you can place anywhere on the document.

Yes. Upload your PDF, add text to fill in any form fields, then place your signature on the document. The entire process is free — no account, no credit card, and no per-document fees. Everything happens in your browser for maximum privacy.

Yes. This tool provides a free electronic signature that you can add to any PDF document. It runs entirely in your browser — your document and signature never leave your device. For regulated e-signature workflows, audit trails, or identity verification, use a dedicated e-signature platform that fits your compliance requirements.