Tutorials

How to Permanently Black Out Sensitive Info in a PDF | PDF Unlimerge

Key takeaways

Drawing a black box over text in a PDF editor feels like redaction, but the original text is often still there underneath -- selectable, copyable, sometimes visible if the box is moved. Redact PDF actually removes the content, not just hides it.

How to redact a PDF

  1. Open Redact PDF and upload your document.
  2. Select the text or areas you want to permanently remove.
  3. Apply the redaction.
  4. Download the redacted PDF -- the original content is gone, not just covered.

Redacting thoroughly

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Redact PDF

Permanently remove sensitive content -- free, not just covered.

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Frequently asked questions

Is this different from just drawing a black box over text?

Yes -- a drawn box can leave the underlying text intact and recoverable, while redaction removes the content itself.

Can I redact images as well as text?

Yes -- select any area of the page, text or image, for permanent removal.

Can the redacted content be recovered afterward?

No -- once redacted and downloaded, the removed content is gone from that file.

Is my document uploaded to redact it?

No -- redaction happens entirely in your browser.

A black box isn't redaction unless the content is actually gone -- try Redact PDF to do it properly.