Currently, our redaction engine permanently rasterizes all pages into flat images. The underlying text on those pages is destroyed, not just visually covered. This is irreversible: once exported, the original text/data cannot be recovered from the file.
Don't Make This Rookie Mistake
Drawing a black box over text using a basic image editor or a standard annotation tool does not actually remove the text. Anyone who downloads the file can easily copy the hidden text or delete the black box. To protect bank accounts, social security numbers, and client identities, you must properly redact PDF files.
Our tool doesn't just cover things up—it physically shreds the underlying text data and replaces it with black pixels. When you black out text in PDF using our redactor, you can rest assured that the hidden information is mathematically wiped from the file's structure, making it impossible for hackers to extract.
Because you are dealing with extremely sensitive data that requires redaction, our tool runs securely within your local browser. Your unredacted file is never uploaded to any remote server, eliminating the risk of a mid-transit data leak.