Redact PDF file
Permanently remove sensitive content by covering areas with black boxes.
or drop PDF file here
Supports single PDF • 100% Local process in your device
How to Redact PDF Online
Securely remove sensitive information from your PDF documents in three simple steps.
Upload your PDF
Click the Select PDF File button or drag and drop your document into the select area. Your file will be processed and stay on your device — nothing is uploaded to any server.
Draw Redaction Boxes
Navigate through your pages and drag your mouse over any areas you want to permanently remove. Black boxes will appear to cover the selected areas.
Use the Undo, Clear Page, or Clear All buttons to adjust your selections before finalizing.
Apply & Download
Once satisfied, click Apply Redactions. Our tool will permanently burn the black boxes into the PDF, removing the underlying data. Download your secure, redacted file instantly.
All data within the areas covered by the black box is permanently removed and cannot be recovered. This ensures information security.
Why Choose CedarPDF for Redaction?
100% Private & Secure
Unlike online converters, CedarPDF processes everything locally in your browser. Your sensitive documents never leave your device, ensuring complete privacy and compliance with data protection regulations.
Permanent Data Removal
We don't just cover text; we permanently remove the underlying content. Once applied, the redacted information cannot be recovered, copied, or searched, guaranteeing true security.
Completely Free
No hidden fees, no email or registration required, and no daily limits. Redact as many PDFs as you need, regardless of file size or page count, it is truly free.
High-Quality Output
Preserve the original layout and quality of your document. Non-redacted text remains sharp, searchable, and selectable, ensuring your final PDF looks professional.