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Redact PDF guide

How to verify PDF redaction before sharing

Treat redaction verification as a separate step: inspect pages, search original terms, test selection, and compare with the sensitive source list.

Updated September 2026 · PDFKaka EditorialOpen Redact PDF
Capture the Redact PDF workspace at 1366×768 with synthetic sample content and the controls used by this workflow visible.

Apply the supported text redactions

  1. Choose a PDF containing selectable text and enter each literal term on its own line.
  2. Share only the verified copy and never rely on a black appearance alone.
  3. Choose whether matching should respect uppercase and lowercase.

Use an independent result check

Do not treat a completed progress indicator in Redact PDF as the final quality check. Save the output, reopen it outside the active workspace, and compare the parts that matter with the original.

Verification should match the risk: page order and readability for ordinary files, exact field values for forms, and stronger checks for signatures, redaction, or sensitive content.

  1. Test the exact content or behavior that motivated the task.
  2. Reopen the downloaded file.
  3. Keep or share only the reviewed result.

FAQ

Can Redact PDF find text inside a scanned image?

No. The current Redact PDF workflow does not perform OCR. A scan must first contain suitable selectable text for text-based matching to work.

What is the current input limit for Redact PDF?

PDF; One PDF ≤50 MiB, ≤100 pages, render cap 20 MP/page.

What does Redact PDF create?

matched pages are rebuilt as images, so selectable text/features can be lost; One PDF ≤150 MiB.

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