Redact PDF
Draw over sensitive content or search for text to mark it for redaction. Apply permanent black redactions and download. Runs entirely in your browser.
Drop your PDF here
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Redact PDF
Marked for redaction
Draw on the page or search text above to mark areas.
Redaction is permanent. Review before sharing.
menu_book How to Redact a PDF
- 1Upload your PDF. It opens in the viewer with page thumbnails on the left.
- 2Use Redact mode to draw boxes over sensitive content, or type text in the search box and click Mark all matches.
- 3Use Erase mode to remove any incorrectly placed boxes before applying.
- 4Click Redact & Download to permanently apply black redactions and download the sanitised PDF.
help Frequently Asked Questions
Is the redaction permanent?expand_more
Yes. When you click Redact & Download, solid black rectangles are drawn directly on the PDF page, permanently covering the content underneath. The original text is not recoverable from the output file.
Is my PDF uploaded to a server?expand_more
No. Everything runs locally in your browser using PDF.js and pdf-lib. Your file never leaves your device.
Can I redact specific text across all pages at once?expand_more
Yes — type the text in the Search box and click "Mark all matches". The tool scans every page and marks all instances for redaction.
What is Erase mode for?expand_more
Erase mode lets you click on any marked (red) box to remove it before applying. Use it to fix mistakes without clearing all redactions.
Why does the text search sometimes miss a match?expand_more
PDF text is stored as individual items that may not align with visible word boundaries. Searching for shorter substrings (e.g. a surname rather than a full name) improves match rates.