Document Redaction Checker
Verify that sensitive information is truly removed, not just hidden.Perfect for legal docs and government submissions.
Check Document Redactions
Drag & drop a PDF document
100% Private
Files never leave your device
Layer Detection
Finds hidden content layers
Text Analysis
Detects hidden & white text
Why Check Document Redactions?
Redaction failures can expose sensitive information even when documents appear properly censored. Many organizations have accidentally leaked confidential data by using improper redaction techniques.
Common Redaction Mistakes
- • Using black boxes over text (text still selectable)
- • White text on white background
- • Hidden layers containing original content
- • Metadata revealing sensitive information
What We Check
- • Selectable text behind shapes
- • Hidden document layers (OCG)
- • Invisible or tiny text elements
- • Annotations and covered content
Perfect For
Legal Documents
Verify court filings and legal briefs are properly redacted before submission.
Government Submissions
Check RTI responses and official documents for proper information removal.
Business Documents
Ensure contracts and reports don't leak confidential information.
How It Works
Upload Your Document
Drop your PDF file into the checker. Your file is processed entirely in your browser - nothing is uploaded to any server.
Deep Analysis
We analyze the document structure, text layers, annotations, and metadata to find any content that might be hidden but still accessible.
Get Detailed Report
Review a comprehensive report showing any redaction issues, their severity, and exact locations in your document.
Your Privacy is Protected
All document analysis happens locally in your browser using WebAssembly. Your files never leave your device, and we don't store, track, or transmit any of your data. No servers, no uploads, no compromises.
Redaction Best Practices
Use proper redaction tools: Use Adobe Acrobat's redaction feature or similar professional tools that permanently remove content.
Flatten the document: After redaction, flatten or print to PDF to ensure no hidden layers remain.
Clean metadata: Remove all document metadata including author, creation dates, and software information.
Always verify: Use tools like this redaction checker to verify your redactions before sharing sensitive documents.
Never use black boxes: Drawing black rectangles over text doesn't remove it - the text remains selectable underneath.