Redact a PDF

Remove sensitive words for good — the text is deleted, not just hidden.

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Redaction fails in practice when people draw a black box over text and the words stay underneath, selectable and copyable. Doclium deletes the characters themselves, so there is nothing left to recover.

🔒 Never used for AI training: delete a document and it is gone from the server.
⚡ No watermarks: on any tool, including the free tier.
↩ Undo: step back through your last 10 edits.

How to redact a PDF

  1. 1Upload the PDF containing the sensitive text.
  2. 2Enter the words or phrases to remove.
  3. 3Confirm, then download the redacted document.

Questions people ask

Is the text really gone, or just covered?

Really gone. The characters are removed from the file, so they cannot be selected, copied or recovered.

Can redaction be undone?

No, which is the point. Doclium confirms before applying it.

Does it also update the AI index?

Yes. The document is re-indexed so the assistant cannot quote text you removed.

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