Scanner App

A cross-platform document scanner built with Flutter. Capture documents with your camera, auto-detect and crop edges, run OCR to extract text, edit and enhance scans, then export and share them as PDFs.

scannerapp.mp4

Features

• Document scanning — capture documents with automatic edge detection and cropping (cunning_document_scanner).
• Camera capture — live camera preview with a guided overlay and capture controls.
• OCR / text recognition — extract text from scanned images using Google ML Kit (google_mlkit_text_recognition).
• Image editing — crop, rotate, and enhance scans (image_cropper, image_editor_plus).
• PDF export — combine scans into a PDF, preview it, and save locally (pdf, path_provider).
• Share — send scans and PDFs to other apps (share_plus).
• Import from gallery — pick existing images to scan or recognize (image_picker).
• Responsive UI — adapts across screen sizes, with a custom splash screen.

Tech Stack

• Flutter (Dart SDK ^3.10.3)
• GetX (get) — state management and routing
• camera + cunning_document_scanner — capture and edge detection
• google_mlkit_text_recognition — on-device OCR
• pdf + path_provider + share_plus — PDF generation, storage, and sharing
• image_cropper, image_editor_plus, image_picker — image editing and import
• permission_handler — camera/storage permissions
• google_fonts, flutter_native_splash, cupertino_icons

Project Structure

lib/
├── main.dart                       # App entry point
├── controllers/                    # GetX controllers
│   ├── scanner_controller.dart     #   camera + scan flow
│   ├── recognition_controller.dart #   OCR text recognition
│   └── pdf_controller.dart         #   PDF build / export
├── screens/
│   ├── splash_screen.dart
│   ├── scanner_screen.dart         #   camera + scanning
│   ├── recognization_screen.dart   #   OCR results
│   └── pdf_preview_screen.dart     #   PDF preview / share
├── widgets/                        # camera_overlay, top_bar, control_bar
└── utils/                          # responsive utilities

Getting Started

Prerequisites

• Flutter SDK (Dart ^3.10.3)
• A physical device or emulator with camera access

Setup

1. Install dependencies:

   flutter pub get

2. Run the app:

   flutter run

Permissions: the app requests camera and storage access at runtime via permission_handler. Make sure the corresponding entries exist in AndroidManifest.xml (Android) and Info.plist (iOS).

Build

flutter build apk        # Android
flutter build ios        # iOS

Supported Platforms

Android · iOS

Note: scanning and OCR rely on camera and ML Kit, which are mobile-first. Desktop/web targets are scaffolded but not the primary platforms.