https://github.com/egdels/makeacopy/compare/v3.2.1-rc1...v3.2.1/

MakeACopy is an open-source document scanner app for Android that lets you digitize paper documents with OCR functionality. The app is designed to be privacy-friendly, working completely offline without any cloud connection or tracking. Design Philosophy MakeACopy treats privacy and offline operation as technical design decisions, not moral or political statements. The app works fully offline, is open source, and avoids tracking or cloud services because this results in a simpler, more robust, and more auditable system. Users are encouraged to evaluate MakeACopy based on its concrete features and implementation rather than on positioning or narratives. App Size Note To ensure fully offline operation, MakeACopy bundles OCR language models, fonts, and image processing components locally. This significantly increases the app size but avoids any cloud dependencies or on-demand downloads. Features - Camera Scanning: Capture documents using the device camera. - Edge Detection: Automatic document edge detection using OpenCV, enhanced with a custom-trained machine learning model (ONNX, Apache 2.0). - Perspective Correction: Adjust and crop documents with manual or automatic perspective correction. - Image Enhancement: Apply filters (grayscale, contrast, sharpening). - OCR: Offline text recognition with Tesseract (fast models included; optional best models via Language-Pack APKs). - OCR Review: Interactive review and correction of OCR results with word-level editing, dictionary-based suggestions, confidence highlighting, and re-OCR for individual words. - PDF Export: Save as searchable PDF with recognized text. - JPEG Export: Export scans as high-quality JPEG images (configurable quality, color/BW). - Multi-page Scanning: Combine multiple pages into one document; reorder and manage pages before export. - Last Scans: Quickly access and reuse your most recent scans. - Share & Save: Export locally or share with other apps. - Dark Mode: Material 3 theme with day/night support. - Privacy-Focused: 100% offline functionality; no internet connection required. OCR Languages MakeACopy supports OCR via Tesseract. You can choose the OCR language during the OCR step. Supported out of the box: - English (eng), German (deu), French (fra), Italian (ita), Spanish (spa), Portuguese (por), Dutch (nld), Polish (pol), Czech (ces), Slovak (slk), Hungarian (hun), Romanian (ron), Danish (dan), Norwegian (nor), Swedish (swe), Russian (rus), Thai (tha). - Chinese (Simplified — chi_sim), Chinese (Traditional — chi_tra). - Arabic (ara), Persian/Farsi (fas). Notes: - All OCR runs fully offline on-device. - For Chinese, MakeACopy includes appropriate CJK fonts for better PDF text embedding. - For Arabic and Persian, MakeACopy includes the Noto Naskh Arabic font for proper RTL (right-to-left) text rendering in PDF exports. ℹ️ Note This is the Light version of the app, supporting English (eng) + German (deu) OCR with NotoSans font. It includes ML-based document detection (ONNX model), OpenCV image processing, and full offline functionality. It uses an operator-stripped ONNX Runtime build with only the operators required for document detection, fewer OCR language models, fonts, and dictionaries, plus a minimal ONNX Runtime AAR without XNNPACK and NNAPI to minimize APK size. Licensing Note The exported ONNX inference model is an independently created work and is licensed under the Apache License 2.0, consistent with the rest of this project. Dataset licenses remain with their respective authors. All datasets mentioned (including UVDoc, SmartDoc, DTD, and CORD) are used strictly for internal training and evaluation. No dataset images, labels, derived images, or training checkpoints are redistributed as part of this project or the application. Privacy MakeACopy respects your privacy: - Works 100% offline. - No tracking, telemetry, or analytics. - No cloud upload. - Requires only camera and storage permissions. License Copyright 2025 Christian Kierdorf Licensed under the Apache License 2.0.