Payment receipt redaction is the removal of sensitive authentication data from a sales slip under PCI-DSS v4.0 Req. 3.3. That clause bars storing the full track, CVV, or PIN after a sale. anonym.plus marks each value on your device, so the slip stays readable while the data goes.
When this applies
A printed slip can show the buyer name, account digits, and an approval code. You strip those under Requirement 3.3 before the receipt is filed or emailed.
How anonym.plus handles it
- Open the slip in anonym.plus on your device.
- Local OCR (Tesseract) reads a scanned or photographed slip.
- The tool flags account digits, names, and codes.
- Confirm each flag on faint thermal prints.
- Black out or swap the confirmed items.
- Save the clean slip locally.
What you need to provide
- The receipt (image scan, PDF, or TXT).
- An operator (Redact suits a printed slip).
- Optional batch of up to 20 receipts per run.
PII & financial identifiers detected
| Category | anonym.plus entity type | Example |
|---|---|---|
| Account | CREDIT_CARD | ending 1111 → [CARD] |
| Names | PERSON | buyer M. Cole → [BUYER] |
| Amount | MONEY | $42.18 → [AMOUNT] |
| Dates | DATE_TIME | 06/12/2026 14:02 → [DATE] |
| Org | ORGANIZATION | Acme Cafe → [MERCHANT] |
| Contact | PHONE_NUMBER | (206) 555 9920 → [PHONE] |
Compliance achieved
- Honors PCI-DSS v4.0 Req. 3.3: no stored CVV, PIN, or track.
- Local OCR reads thermal and photographed slips.
- Offline work keeps the slip on your machine — no upload.
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Limitations & cautions
Faint thermal ink can defeat OCR on a low-quality scan. Check the flags on weak images. The tool marks named fields but cannot read smudged digits reliably.
Frequently asked questions
What must a receipt never store under Req. 3.3?
The full track data, the card verification value, and the PIN. anonym.plus flags the visible account and name fields so you can clear them too.
Can the tool read a photographed slip?
Yes. Local OCR reads the image first, then flags the data so you can black it out before the receipt is filed.
Is a black-out reversible?
A true Redact removes the pixels. If you need to re-link later, use Replace with a name map and guard that map.