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Is it private and safe to redact a PDF online?

Updated July 2026

Yes. When you redact a PDF in Arthize, the file is processed inside your private workspace and deleted after the job — never sold or used to train models. Real redaction deletes the underlying content; a black rectangle alone can be removed to reveal the text.

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Answer

Yes. When you redact a PDF in Arthize, the file is processed inside your private workspace and deleted after the job — never sold or used to train models. Real redaction deletes the underlying content; a black rectangle alone can be removed to reveal the text.

More about redact pdf

Real redaction deletes the underlying content; a black rectangle alone can be removed to reveal the text.

Copying text from under a fake redaction box exposes the hidden data — a common leak.

Redaction should also clear document metadata that can leak names and edit history.

How to redact a PDF

  1. 1

    Open the redact tool

    Sign in and open the Redact tool.

  2. 2

    Mark what to hide

    Draw over the names, numbers or paragraphs that must be removed.

  3. 3

    Apply redaction

    Arthize deletes the underlying content, not just paints over it.

  4. 4

    Download

    Get a clean PDF where the redacted data is truly gone.

Common questions

How do I permanently redact text in a PDF?
Redacting a PDF permanently removes the underlying text and images under a black box — not just covering them — so hidden data can't be recovered. On Arthize it's free with no watermark and processed privately.
Why is drawing a black box over text not safe?
Redacting a PDF permanently removes the underlying text and images under a black box — not just covering them — so hidden data can't be recovered. On Arthize it's free with no watermark and processed privately.
Does redaction also remove hidden metadata?
Redacting a PDF permanently removes the underlying text and images under a black box — not just covering them — so hidden data can't be recovered. On Arthize it's free with no watermark and processed privately.

Related

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