Draw black rectangles over sensitive areas to permanently hide content.
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Choose a fileFusionPDF's redaction tool lets you permanently black out sensitive information in PDF pages — names, addresses, financial figures, personal identifiers, or any content that must not be visible. Redacted areas are replaced with solid black blocks that cannot be removed or revealed, even in the raw PDF file.
Upload your PDF and use the redaction tool to draw black boxes over the content you want to hide. You can add as many redaction boxes as needed across any page. Once you've marked all sensitive areas, click Apply Redactions. The tool permanently removes the underlying content and replaces it with opaque black rectangles.
Redaction is required when sharing legal documents that contain third-party personal data, distributing medical records with patient identifiers, sending financial reports with confidential figures, complying with GDPR or HIPAA data minimization requirements, or preparing documents for public disclosure under freedom of information requests.
FusionPDF's redaction is permanent — unlike simply drawing a black shape on top, the underlying text and image data is actually removed from the PDF structure. All processing happens in your browser, so the original content never reaches a server. The tool is free, requires no account, and works on any device.
If you're handling sensitive documents, see our PDF privacy guide for a complete breakdown of what server-based tools do with your files — and how to verify any tool's behavior in under 60 seconds using browser DevTools.