Secure files

Black out matching text inside a PDF

Search for one or more phrases and permanently apply redactions across the document.

Redact PDF Security

Upload your files

Select the files you want to redact pdf and PaperKit will open the interactive workspace.

Drop files here

or click to browse from your computer

Search for phrases and black them out

Redact PDF searches the document for matching text and applies black redaction boxes wherever those matches appear. This is useful for repeated names, account references, or internal labels that should be removed.

The tool works best on searchable PDFs with selectable text. Image-only scans may need OCR before text matches can be found reliably.

Helpful patterns

  • Put one word or phrase on each line.
  • Use it before sharing documents outside your team.
  • Pair with Protect PDF for another layer of control.

Why use Redact PDF online

  • Search one or more phrases at once.
  • Apply document-level black box redactions.
  • Keep a private temporary result page for review and download.

How to use Redact PDF

Step 1

Upload one PDF.

Step 2

Enter the phrases you want redacted.

Step 3

Download the redacted PDF.

Redact PDF specs and limits

Accepted files
1 PDF
Input
One phrase per line
Output
1 redacted PDF

Redact PDF FAQ

What if the text is not searchable?

Scanned PDFs without selectable text may not produce matches.

Can I redact several phrases at once?

Yes. Enter one phrase per line and PaperKit will search each one.

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