Redact PDF
Redact PDF files online. Free PDF redaction tool to hide sensitive information. Add black boxes to cover confidential data. Fast, secure, works in browser.
About PDF Redaction
This tool adds black rectangles to cover sensitive information in PDF files. You can specify areas to redact by page and coordinates. Note: This covers text visually but does not permanently remove it. For complete redaction, use professional PDF software.
How does redaction work?
This tool places black rectangles over specified areas in your PDF to hide sensitive information. You enter the page number and coordinates of areas you want to cover.
Is the information permanently removed?
No. This tool covers information with black boxes but does not delete the underlying text. For permanent removal (true redaction), use professional PDF software like Adobe Acrobat Pro.
How do I know the coordinates?
PDF coordinates start from bottom-left corner. X increases to the right, Y increases upward. Most A4 pages are about 595 x 842 points. You may need to experiment with values.
Can I redact multiple areas?
Yes! You can add multiple redaction areas across different pages. Each area can have different size and position.
What is the file size limit?
The maximum file size is 50MB.
Can I preview before downloading?
Yes! You can preview the redacted PDF before downloading to ensure all sensitive areas are properly covered.
Is my PDF file safe?
Yes! All redaction processing happens in your browser. Your file is never uploaded to any server.
What color are the redaction boxes?
Redaction areas are covered with solid black rectangles to completely hide the information underneath.