All Developer Tutorials — Page 20 of 34

Learn how to scan paper documents from a web page using JavaScript and the Dynamic Web TWAIN REST API. Step-by-step tutorial covering scanner enumeration, scan job creation, and scanned image retrieval via HTTP endpoints on Windows, macOS, and Linux.

Step-by-step tutorial to merge multiple UIImages into a single PDF on iOS using Swift. Covers photo gallery picking, auto document cropping, color mode selection, and PDF export with Dynamsoft Document Normalizer.

Step-by-step guide to building a C# WinForms webcam barcode reader with DirectShow.NET and Dynamsoft Barcode Reader SDK. Covers video capture, real-time 1D/2D barcode decoding, and result overlay.

Step-by-step guide to building a cross-platform command-line barcode and QR code reader in Rust using FFI bindings to the Dynamsoft C++ Capture Vision SDK. Covers project setup, C++ bridge implementation, and both interactive and batch processing modes on Windows, Linux, and macOS.

Step-by-step C++ tutorial: scan 1D barcodes and recognize OCR text labels from camera frames using Dynamsoft Capture Vision SDK with OpenCV on Windows and Linux.

How to automatically zoom the camera to scan tiny or distant QR codes in a web app, using dynamsoft-barcode-reader-bundle v11 and Dynamsoft Camera Enhancer's EF_AUTO_ZOOM or manual getUserMedia zoom control.

Step-by-step tutorial on controlling camera zoom in a JavaScript web app using the getUserMedia API and Dynamsoft Camera Enhancer, with cross-browser fallback via CSS and WebGL.

Build a web-based parcel scanner that reads 1D barcodes and extracts surrounding text labels in any orientation using Dynamsoft Capture Vision JavaScript SDK.

Step-by-step tutorial to build a cross-platform desktop document scanner in Electron using the Dynamic Web TWAIN JavaScript SDK. Scan, load, and save documents as PDF, TIFF, or JPEG on Windows, Linux, and macOS.

Build a high-performance Flutter QR code and barcode scanner for iOS by mixing Dart and Swift code, integrating AVFoundation camera previews with the Dynamsoft Barcode Reader Bundle and its CaptureVisionRouter API for real-time decoding.