In short
- YomuScan finds common personal details and covers each with a black box.
- You review every box before you export or share.
- The cover is drawn into the image pixels, not just placed on top.
What it looks for
- National ID numbers: US Social Security and ITIN, Singapore NRIC and FIN, Hong Kong ID, UK National Insurance
- Passport numbers on lines that mention a passport
- Card numbers that pass the Luhn check, bank account numbers and IBANs
- Phone numbers in international, North American and Vietnamese formats, and email addresses
What it leaves alone
Amounts like $1,552.00, dates like 2026-10-19, and order numbers. If something is hidden that should not be, tap the box to remove it.
Why the box is permanent
Redaction is burned into the image pixels, so nobody can lift the box off in another PDF reader. It also applies to share links: a link can use the redacted version.
Check before you share
Always look before you send
Driver’s licenses and ID types from other countries are not detected yet. Cover anything we missed by hand.
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