# DocProtect

> Protect your identity documents before sharing them. Add watermarks and redact sensitive data. 100% offline, no server, no tracking.

## What is DocProtect?

DocProtect is a free, privacy-first tool for protecting identity documents (ID cards, passports, driver's licenses, contracts, invoices, etc.) before sharing them online or with third parties.

It adds customizable watermarks (e.g., "Copy for Hotel X — 2026-03-18") and lets you redact sensitive information using brush, rectangle, and eraser tools.

## Key Features

- **100% Offline**: All processing happens on your device. No data is sent to any server.
- **Watermarks**: 4 styles (subtle, diagonal, full, waves) with custom recipient and date.
- **Data Redaction**: Brush, rectangle, and eraser tools with multiple sizes.
- **Black & White**: Optional grayscale conversion to reduce document quality for copies.
- **Multi-platform**: Available as a web app (PWA), iOS app (iPhone/iPad), and Android app.
- **Multi-language**: Available in 8 languages: Spanish, English, French, Portuguese, Italian, German, Catalan, Dutch.
- **No accounts, no cookies, no analytics**: Zero data collection of any kind.

## Platforms

- **Web**: https://docprotect.net/editor/ (vanilla JS, Canvas API, PWA, works offline)
- **iOS**: App Store (Swift/SwiftUI, Apple Pencil support, iOS 17+)
- **Android**: Google Play (Kotlin/Jetpack Compose, S-Pen support, Android 10+)

## Technology

- Web: Vanilla JavaScript, CSS3, Canvas API, Web Workers, Service Worker (PWA)
- iOS: Swift 5, SwiftUI, UIKit Canvas, StoreKit 2
- Android: Kotlin, Jetpack Compose, CameraX, Material Design 3
- No external dependencies on iOS; minimal on Android (Compose, CameraX, Coil)
- Web uses a zero-dependency Node.js build script to generate static HTML from templates + translations

## Privacy

DocProtect does not collect, transmit, or store any user data. There are:
- No server-side processing
- No analytics or tracking scripts
- No cookies
- No user accounts or registration
- No network requests (works fully offline)

Documents are processed entirely in the browser or on-device and never leave the user's control.

## Business Model

- **Personal (free)**: Full features. Mobile apps: 5 exports/day, DocProtect badge. Web: unlimited.
- **Business (coming soon)**: Unlimited exports, custom corporate branding, DPO email visible.

## Author

David Carrero — Color Vivo Internet S.L.
Website: https://carrero.es
Project: https://github.com/dcarrero/DocProtect-web