Mark up · Private PDF tool

Secure Redaction

Remove sensitive content. Your files stay on this device.

Processed on this deviceYour file stays in this browser

Private workspace

Cover sensitive areas, remove the underlying content, and verify the exact downloadable result.

How it works

Redact a PDF Securely Without Uploading

  1. 01

    Choose a PDF and position redaction boxes over sensitive areas.

  2. 02

    Build a secure preview: every page becomes an image, removing selectable text, links, editable forms, and hidden original resources.

  3. 03

    Inspect all pages and download the securely redacted copy; keep your original separately.

Redact PDF content without uploading the document

Use Secure Redaction to cover sensitive regions and build a new PDF from the visible page pixels. Position a redaction box, add it to the intended page, and repeat for every area you need to hide. Build the secure output preview before downloading; the downloadable PDF uses that generated result.

What to check before sharing

Every page is rebuilt as an image, including pages without redaction boxes. This removes original selectable text, links, editable forms, and other original document structures. It can change file size and print sharpness. The tool does not automatically find every occurrence of sensitive information; inspect the entire document and retain the original privately.

Common questions

Why not just draw a black rectangle over the text?

An ordinary annotation may only hide text visually while leaving it underneath. This tool instead rebuilds the output pages from pixels after covering the selected areas, so the original text and resources are not copied into the new PDF.

Does placing a draft box finish the redaction?

No. Add the area to the page and build the secure output preview. The draft box is a positioning aid, not a completed redaction. Review the generated result before downloading.

Can I undo redaction in the downloaded PDF?

The covered content is not retained in the generated copy. Keep your original separately if you may need it later, and do not share that original alongside the redacted file.

Related tools and workflows

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