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Redaction Checker

Test a redacted PDF before you share it. Find text that is covered on the page but still in the file. Your PDF is never uploaded.

Drop a redacted PDF here

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What it checks

Text under black bars or white boxes, white or invisible text, redactions that were marked but not applied, earlier versions saved in the file, comments, form values, attached files and metadata.

How to fix a leak

Use the PDF Redactor. It makes a new PDF from images of the pages, so no text, earlier versions or metadata stay in the file.

Private by design

The page has no server code and uses no AI model. PDF.js reads the PDF and draws the pages in your browser.