Anonymize my ID turns a photo of your ID card or passport into a watermarked, redacted copy you can share when someone asks for one. It processes everything 100% on your phone, works offline, and needs no account. It supports Spanish DNI/NIE cards and passport data pages, on iOS 15+ and Android 7.0+.
Free (€0) allows 2 anonymizations per install with all sensitive fields hidden, black-and-white output and a watermark. Pro is about €7 once, with no subscription, and adds unlimited use, selectable fields, blur, pixelate or solid bar, partial redaction, colour output and a custom watermark. It will not pass checks that legally require the full document.
Handing a full copy of your ID to a stranger exposes your name, document number, birthdate, address and signature. We built Anonymize my ID so people can answer routine ID requests with a watermarked, redacted copy instead, processed on their own phone.