How to Build an Android Document Scanner with Auto-Capture and PDF Export

Scanning physical documents with a phone camera sounds simple until you deal with skewed angles, inconsistent lighting, and multi-page workflows. The Dynamsoft Capture Vision SDK for Android handles real-time document boundary detection, perspective correction, and image normalization — letting you focus on the user experience instead of low-level image processing. What you'll build: A full-featured Android document scanning app in Java that auto-captures documents via quad stabilization, supports gallery import, quad editing, image filters (color/grayscale/binary), page sorting, rotation, and multi-page PDF and JPEG export — all powered by Dynamsoft Capture Vision SDK. Demo Video: Android Document Scanner in Action Prerequisites Android Studio (Arctic Fox or later) Android SDK with compileSdk 35 and minSdk 23 Java 11 (source and target compatibility) Dynamsoft Capture Vision SDK — com.dynamsoft:capturevisionbundle:3.4.1000 A physical Android device (camera-based features do not work o