Redact PDF Online for Free
Permanently black out sensitive text and areas in any PDF using ToolMint. Search for keywords to auto-mark all matches, or draw manual redaction boxes over any part of the page. The exported PDF is fully flattened so redacted content cannot be recovered.
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How to Redact a PDF
1
Upload a PDF
Open the PDF that contains sensitive content you need to redact.
2
Mark content
Search for text to auto-select matching words, or draw redaction boxes manually over any area.
3
Review
Check all redaction marks on the page preview before finalizing.
4
Download flattened PDF
Export the permanently redacted, flattened PDF with all marked content blacked out.
Frequently Asked Questions
- Is the redaction permanent?
- Yes. ToolMint flattens the PDF on export, permanently removing the content under each redaction box. The original text cannot be recovered from the downloaded file.
- Can I search for specific words to redact?
- Yes. Use the text search to automatically find and mark all occurrences of a word or phrase across all pages.
- Can I redact images or non-text areas?
- Yes. Draw a manual redaction box over any area of the page, including images, tables, or handwritten content.
- What color are the redaction boxes?
- Redacted areas are filled with a solid black rectangle, which is the standard appearance for legal and professional document redaction.
- Is my PDF uploaded to a server?
- No. All redaction processing runs in your browser. Your document never leaves your device.