This article demonstrates how to build a desktop application that scans physical documents and reads barcodes from them — all within a single Python window. The application combines PySide6 for the native UI, Dynamic Web TWAIN (DWT) for scanner integration, and Dynamsoft Barcode Reader for barcode decoding. DWT is a...

In today’s digital world, we often need to convert, merge, and edit documents from various sources. Whether you’re working with PDFs, Word documents, images from your phone, or scanned documents from a physical scanner, having a unified tool that handles all these formats is invaluable. In this tutorial, we’ll build...

Building desktop applications that interact with hardware devices like scanners and cameras has traditionally been challenging, often requiring platform-specific driver installations, complex configuration, and dealing with vendor-specific SDKs. Modern .NET development, however, provides us with powerful frameworks and libraries that simplify these interactions significantly. In this comprehensive tutorial, we’ll walk...

Since version 17.1, Dynamic Web TWAIN has supported Chrome OS, in addition to Windows, Linux, macOS, and Raspberry Pi OS. This guide applies to versions 17.1 through 19.x. It covers installation, version-specific package names, and post-installation configuration such as certificate handling and host settings. What you’ll build: A fully functional...

In today’s digital workplace, document scanning and text recognition are vital capabilities for many business applications. In this tutorial, you’ll learn how to build a Windows document scanner application with Optical Character Recognition (OCR) using: .NET 8 C# Dynamic Web TWAIN REST API Windows.Media.Ocr API (Windows built-in OCR engine) By...

Dynamic Web TWAIN Service is the core component of the Dynamic Web TWAIN SDK. It enables you to acquire documents from document scanners over a local network using REST API. This API overcomes the limitations of traditional browser-based scanning solutions by allowing you to capture documents from scanners connected to...

In office environments, network-connected physical document scanners from manufacturers like HP , Canon , Epson , and Brother often support protocols such as ESCL (AirPrint) or ICA (Image Capture). However, for scanners that do not natively support these protocols, you can use third-party services like Dynamic Web TWAIN to enable...

Apple provided a sample project demonstrating how to create a virtual scanner device a long time ago. The last revision was on June 12, 2012. In this article, we will build the sample project using the latest Xcode on macOS Sequoia and use it to test front-end document scanning applications...

A virtual scanner is a software-based solution that mimics the functionality of a physical document scanner. It allows developers and testers to simulate scanning operations without requiring actual hardware, making it an essential tool for testing and development. In this tutorial, we’ll explore how to create a virtual scanner device...

Document digitization is a common task across various industries. Many documents—such as exam papers, legal contracts, patient records, account statements and more—contain barcodes that store crucial information. In this article, we will demonstrate how to build a .NET MAUI Windows app to digitize documents using traditional scanners (HP, Canon, Epson,...

Modern browsers can now access the camera and run image processing to do various computer vision tasks. In this article, we are going to build a Vue.js app to scan document images from a camera and save them into a PDF file. Dynamsoft Mobile Web Capture is used to provide...

Modern browsers can now access the camera and run image processing to do various computer vision tasks. In this article, we are going to build a React.js app to scan document images from a camera and save them into a PDF file. Dynamsoft Mobile Web Capture is used to provide...

An identity document or ID card is any document that may be used to prove a person’s identity. There are various forms of identity documents: driver’s license, passport and formal identity card. Barcodes and MRZ (machine-readable zones) are often printed on an ID card so that its info can be...

Need to scan paper documents directly from a .NET Blazor WebAssembly app? Dynamic Web TWAIN is a JavaScript-based document scanning SDK that supports TWAIN, WIA, SANE, ICA, and eSCL scanner protocols across Windows, macOS, and Linux. This tutorial shows you how to connect a Blazor WebAssembly app to physical scanners...

In today’s digital age, efficient document management is crucial for businesses and individuals alike. Integrating document scanning capabilities directly into web applications can significantly streamline workflows, allowing users to digitize and manage documents with ease. In this tutorial, we’ll explore how to leverage the power of the Dynamic Web TWAIN...

In .NET MAUI development, both BlazorWebView and WebView are used to display web content, but they serve different purposes and are designed for different scenarios. The BlazorWebView is specifically designed to host Blazor components in a .NET MAUI application, allowing you to reuse Blazor components and share code between web...

Last week, we developed a desktop document scanner application using .NET MAUI and the Dynamic Web TWAIN REST API. We encountered an issue where the app’s UI, constructed with MAUI controls, behaved inconsistently on Windows and macOS. For instance, the Picker control functioned well on Windows but not on macOS....

Dynamsoft used to offer both the .NET TWAIN SDK and the Dynamic Web TWAIN SDK. However, the .NET TWAIN SDK is no longer maintained, and the focus has shifted to the web-based Dynamic Web TWAIN SDK. Despite this shift, you can still build a desktop document scanner application in .NET...

Dynamic Web TWAIN offers two methods for scanning documents from a web page: the HTML5/JavaScript API and the RESTful API. The former is suitable for web applications that require a high level of customization, while the latter is ideal for enterprise-class web applications, such as Salesforce, Oracle APEX, and Microsoft...

Electron is a framework for building cross-platform desktop applications with HTML, JavaScript, and CSS. Since Dynamic Web TWAIN is also a cross-platform JavaScript library for document scanning and management, we can combine Electron and Dynamic Web TWAIN to implement a desktop document scanning and management application for Windows, Linux, and...

When digitizing documents, we may accidentally scan a document image twice. Finding the duplicate images manually is painstaking. In this article, we are going to use JavaScript to detect duplicate document images automatically. How to Calculate the Similarity between Two Images We need to compare two images to check whether...

Starting from version 18.0, the Dynamic Web TWAIN SDK has expanded its support for the eSCL protocol. This enhancement enables the SDK to support not only USB-connected scanners but also network scanners. Furthermore, Dynamsoft has released an Android app for eSCL communication, benefiting both Android and Chromebook users. This breakthrough...

Node.js, Express, and Jade are technologies often used together to build web applications. Node.js runs the server, handling HTTP requests and responses. Express is used to simplify the routing and middleware setup, managing everything from routes to handling requests and views. Jade is used as the templating engine within Express....

Shadow DOM is a web standard designed to encapsulate HTML and CSS into web components. It allows for the creation of separate DOM trees and specifies how these trees interact with each other in a document. Polymer is a library developed by Google to make it easier to create reusable...

Laravel is a PHP Framework. This article shares how to use Dynamic Web TWAIN to scan and upload documents in a Laravel project, enhancing web document management capabilities. This article is Part 5 in a 5-Part Series. Part 1 - How to Implement Web Document Scanning in ASP.NET Core MVC...

Django is a popular Python framework for web development. In this tutorial, we will create a web application using Django and Dynamic Web TWAIN. This article is Part 4 in a 5-Part Series. Part 1 - How to Implement Web Document Scanning in ASP.NET Core MVC with Dynamic Web TWAIN...

The Dynamic Web TWAIN SDK is renowned for its capabilities in document scanning, uploading, editing, and saving. In this article, we will explore the image tagging and grouping feature for document management applications. For instance, you can tag images with a date, project name, or customer name, enabling you to...

In the previous article, we demonstrated the implementation of a web application for scanning and uploading documents using Dynamic Web TWAIN and Node.js. In this article, we will guide you through achieving the same functionality using Go. The process closely mirrors the Node.js implementation, allowing you to reuse client-side resources...

In the digital era, managing documents efficiently is crucial for businesses and individuals alike. With the rise of web technologies, scanning and uploading documents through web applications has become a sought-after feature. This article introduces a practical way to implement document scanning and uploading in a web application using Dynamic...

Filters are commonly used to adjust the rendering of images. We can use it to make images sharper, remove unwanted objects, or adjust the color tone. In this article, we are going to build a JavaScript library to perform various image filters. It can be used together with Dynamsoft Document...

ASP.NET Core enables C# server-side applications to run on Windows, Linux, and macOS. In this tutorial, we will go through the steps of building a web document scanning application with ASP.NET Core and Dynamic Web TWAIN SDK. What you’ll build: A cross-platform web document scanning application using ASP.NET Core MVC...

A Domain-Specific Language (DSL) is a computer language that’s targeted to a particular kind of problem. Examples of DSLs are CSS, SQL, make, etc. An important and useful distinction Martin Fowler makes is between internal and external DSLs. Internal DSLs are particular ways of using a host language to give...

OpenCV is an open-source computer vision and machine learning software library. It provides various image processing methods for us to solve different tasks. In this article, we are going to build a web document scanner with the JavaScript version of OpenCV. A JavaScript library is made first and then used...

As the web platform develops, we can build rich kinds of applications on it. We can build a web app like a barcode scanner or a document scanner using the getUserMedia API to get camera frames for live analysis. While a barcode scanner may not require high resolution, a document...

Using the Dynamic Web TWAIN Service RESTful API significantly simplifies the creation of document scanning applications. However, distributing these as desktop applications can be somewhat challenging. Users are required to install both the developer’s application and the Dynamic Web TWAIN Service. Bundling them together in a single installation package would...

Last week, we developed a RESTful service using .NET C# and Twain.Wia.Sane.Scanner library to scan documents from TWAIN, WIA, SANE, and eSCL scanners. This week, we will repurpose the C# code to construct a Blazor WebAssembly application that digitizes documents directly from a web browser, all without the need for...

Having previously developed libraries for Node.js, Flutter, Java, and Python to integrate with Dynamic Web TWAIN Service’s REST API, we’re now turning our attention to .NET. In this article, we introduce a .NET library to interface with the REST API, facilitating document scanning from TWAIN, WIA, SANE, and eSCL compatible...

Dynamic Web TWAIN Service streamlines document scanner programming for developers by providing a unified REST API that works with TWAIN, WIA, eSCL, SANE and ICA drivers. We have previously released a Node.js package and a Flutter plugin to interact with Dynamic Web TWAIN Service’s REST API. In this article, we...

Microsoft Power Apps is a low-code development platform that enables you to build custom apps tailored to your business needs. Within Power Apps, a ‘Canvas App’ is a specific type of app that allows you to design your interface by dragging and dropping elements onto a canvas, similar to designing...

Dynamic Web TWAIN Service provides compatibility with all major document scanner protocols, including TWAIN, WIA, eSCL, SANE and ICA, across Windows, Linux and macOS platforms. Initially part of Dynamic Web TWAIN, it will soon offer its core scanning functionalities through a REST API in an upcoming release. This article guides...

Dynamsoft’s Web TWAIN SDK has long been a market leader in web-based document scanning, empowering numerous organizations to develop their own document management systems. The SDK consisted of two main components: a Dynamic Web TWAIN Service for scanner management and a JavaScript library for front-end development. Previously, this service could...

In a world that is increasingly digital, the ability to transform physical paper documents into electronic files by scanning them from a multi-function printer (MFP) has become a fundamental requirement for businesses of all sizes. Scanning paper documents helps create a more organized and efficient workspace. E-documents foster better collaboration...

Dynamic Web TWAIN is well-known for document scanner programming. It provides a set of JavaScript API to simplify the way of integrating document scan functions into web applications. Most of the time, we use Dynamic Web TWAIN with its built-in UI. However, the default UI may not be suitable for...

There are many web developers who prefer using Angular and Dynamic Web TWAIN to build web document scanning and management applications. The official Dynamic Web TWAIN samples are written in JavaScript. Although TypeScript is compatible with JavaScript, it is not just a copy-and-paste job to use these JavaScript code in...

Dynamic Web TWAIN is a cross-platform document scanning SDK that allows developers to build document management applications using HTML5 and JavaScript on Windows, Linux, and macOS. The Linux edition of Dynamic Web TWAIN supports both x64 and amr64 Linux OS, which means in addition to desktop PCs, you can also...

When building a TWAIN-compatible application and there is no physical scanner available, you can use a virtual scanner application for development and testing. TWAIN working group has released a TWAIN DS sample on GitHub. In this article, I will detail how to set up the development environment, as well as...

As the world best web document scanning SDK, Dynamic Web TWAIN supports all mainstream web application frameworks. This tutorial goes through the steps to build a simple document management application using Dynamic Web TWAIN and Angular. What you’ll build: A browser-based document management app in Angular that acquires images from...

Wrapping an HTML element as a component is a new fashion of front-end development. In this article, we will take a tour of building a component-based document scanning app using Vue.js and Dynamic Web TWAIN. To make our application look modern, we hire Vuetify, one of the most popular libraries, to...

You may get problems when using your application with some scanners and wonder whether it is the issue with your application or it is the device issue. If you are using a TWAIN library and your application is supposed to work with all TWAIN compatible devices, you can use Twacker,...