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Redact PDF Documents Online

Black out names, numbers and passages so they're gone from the file, not just hidden behind a box.

About Redact PDF

Redact PDF documents before they go to a court, a journalist, a client or a public portal. Drawing a black rectangle in an ordinary editor only covers the text, and anyone can still copy it out. Here every page with a black box is rebuilt as an image, so the hidden words can't be selected, searched or recovered. Pages without redactions keep their text.

Drag boxes over anything you want gone, or type words to find, one per line, and tick presets for phone numbers, email addresses, ID numbers, and card numbers or IBANs. Mark all matches puts a box on every hit across the document, and you can check or delete each one before saving.

How to use Redact PDF

  1. 1
    Open the PDF

    Click Choose file or drop the document that contains the sensitive details.

  2. 2
    Mark what to hide

    Drag boxes with Mark area, or type words and tick presets, then press Mark all matches.

  3. 3
    Review the boxes

    Scroll through the pages, delete any box you don't need, and use Undo if something went wrong.

  4. 4
    Redact and save

    Click Redact and save to redact PDF pages for good and download the copy.

Why use Cubfile for this

  • Removed, not just covered

    Redacted pages are flattened into images, so there's no text left underneath to copy.

  • Find and mark

    Search the whole document for names or words and box every match in one step.

  • Presets for personal data

    Phone numbers, emails, ID numbers such as an SSN, National Insurance number or Aadhaar, card numbers and IBANs are found by pattern, check digits included.

  • Other pages keep their text

    Only pages with black boxes become images; the rest stay searchable and sharp.

FAQ

Redact PDF: questions and answers

How do I redact PDF text permanently?
Mark it with a box, or find it by word, then click Redact and save. Each page with a box is rebuilt as an image, so the words underneath are gone from the file.
Can I redact a scanned PDF document?
Yes, by drawing boxes. Word search needs real text, so on a scan draw the boxes yourself, or run OCR PDF first if you want to search.
Why can't I select text on redacted pages anymore?
Those pages are saved as images, which is what makes the redaction permanent. Free accounts get them at 200 dpi and VIP at 300 dpi. If the image pages make the file too big for a portal, Compress PDF can shrink it.
Can I redact a PDF online for free?
Yes. Marking is free, and each saved result counts as one task, 2 a day on a free account or 2 in total without one, for files up to 50 MB. VIP has no daily limit.
Is it safe to upload a document before redacting it?
The unredacted file travels over HTTPS, is processed in an isolated process and is deleted after one hour along with the redacted copy. No one here opens it.
Share Redact PDF with a friendIt runs in any browser, and they can try it without signing up.

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