If you’re looking to build a document scanner Android app using Kotlin and Android Studio, the Open NoteS canner Android source code is the perfect starting point. OpenNoteScanner is an open-source project designed to scan paper documents and enhance them using automatic edge detection and perspective correction. Built with simplicity and usability in mind, this project is ideal for developers who want to create scanner apps, note capture tools, or educational document utilities.
Written in Kotlin and compatible with modern versions of Android SDK, OpenNoteScanner showcases practical implementations of camera integration, OpenCV edge detection, document cropping, image enhancement, and PDF generation. This makes it a great example of real-world mobile development using open-source libraries and clean architecture.
With OpenNoteScanner, developers can explore how to:
- Access and control the camera using Camera APIs
- Detect document edges automatically
- Apply filters to scanned images
- Convert images into clean black-and-white documents
- Export scans as PDF files or shareable images
Whether you’re a student, developer, or educator, studying this source code will help you build better mobile scanning apps. You’ll learn how to handle permissions, optimize memory usage, and design a user interface tailored for productivity and scanning workflows.
The project is actively maintained on GitHub and is widely used in the developer community as a template for mobile scanner apps. It is fully open-source and licensed under GPL, meaning you can modify, distribute, and integrate it into your own projects.
For anyone looking to understand document scanning algorithms or integrate smart document detection into an Android app, OpenNoteScanner Android source code is one of the best open-source resources available.