How Lex Cloak works

Lex Cloak redacts a PDF in five steps, all on your computer: open the document, let detection find sensitive text, review and adjust what gets covered, preview the result, and save a clean copy. Nothing is uploaded, and your original file is never changed.

A short walkthrough, captured on a synthetic sample document. Press play to watch the full loop.
1

Open your document

Open a PDF by dragging it in or choosing File, then Open. Lex Cloak reads the whole document on your computer, including scanned pages, using built-in OCR.

Get started
2

Detection finds what looks sensitive

Detection runs on your computer and marks what looks sensitive, such as names, dates of birth, Social Security numbers, and addresses, as red and amber boxes for you to review.

How detection works
3

You review and adjust

You decide what stays covered. Turn individual matches on or off, add anything the scan did not catch, and mute a whole category when it does not apply to your document.

Red boxes and the review loop
4

Preview before you save

Preview the final black-box result before you save. The pre-download checklist points out things worth a second look, such as a signature it found or a category you turned off.

Preview, checklist and download
5

Save a clean copy

Save a redacted copy. The text under each black box is removed from the saved file, not just hidden, and your original document stays untouched.

Saving your redacted PDF

Try it on your own document

Scanning is free, so you can see what Lex Cloak finds before you decide. Not sure which detection profile fits your work? Start with the detection profiles guide.