Redact PDF — Permanently Blackout Text
Draw black boxes over credit card numbers, Social Security Numbers, names, and private information and permanently burn them into the document.
Sharing a PDF that contains personal data, financial information, or confidential business content requires proper redaction. Unlike simply placing a black rectangle on top of text in a PDF editor (which can be removed), GenZDoc's redaction tool permanently removes the underlying text data and replaces it with a solid black block before re-flattening the document. The original text becomes unrecoverable — even with text extraction tools.
How it works
Select your file securely from your local device.
Your browser instantly performs the operation securely.
Save the fresh file directly to your secure device.
Frequently Asked Questions
Is the redaction truly permanent?
Yes. Unlike simply drawing a black box over text, our tool removes the underlying text data at the PDF structure level and flattens the document. The redacted content cannot be recovered even with extraction tools.
Can I preview what I redacted before downloading?
Yes. The editor shows you a live preview of all redaction boxes before you confirm and download the final document.
Can I redact images or scanned PDFs?
Yes. For scanned PDFs (image-based), the black box is drawn over the image directly and flattened, permanently concealing the visual content.