Dynamsoft Developer Blog

Scalable Vector Graphics, SVG, is a W3C XML dialect to mark up graphics1. SVG can be created dynamically with JavaScript and injected into the HTML DOM2. https://developer.mozilla.org/en-US/docs/Web/SVG/Tutorial ↩ https://developer.mozilla.org/en ...

QR code is useful to transfer data across different devices. An Android device can exchange data with an iOS device through a QR code. It does not require setting up a wireless network and does not have the hassle of pairing using Bluetooth. As it is a screen-camera solution, ...

Last time, I shared an article Document Imaging and Uploading with Dynamic Web TWAIN (DWT) and Node.js, which demonstrated how to deploy a website on the Web server that implemented in node.js with Express. Today, I’ll re-write the sample with Express application generator an ...

Updated in 2021:

Since from version 17.1, Chromes OS comes into the supporting list of Dynamic Web TWAIN. The supported desktop operating systems of Dynamic Web TWAIN now include Windows, Linux, macOS, Raspberry Pi OS and Chrome OS. This article helps Chromebook users to install Dynamic Web T ...

Electron is a framework for building cross-platform desktop applicationss 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 des ...

Cameras are now ubiquitous in our life. Every mobile phone has built-in cameras which can shoot nice photos. As for document scanning, there is document camera (also called overhead scanner) which is adjustable and has high resolution.

If you are looking for a JavaScript barcode scanner SDK, Dynamsoft JavaScript Barcode SDK is no doubt the best. The SDK enables developers to quickly build web barcode scanner applications with a few lines of code. Besides, it authorizes developers to use the SDK for 7 days w ...

Dynamic Web TWAIN is a JavaScript library designed for document scanning and document management. This tutorial guides through React development. You will see how to combine Reactjs and Dynamic Web TWAIN to build a simple web application which can acquire images from a docume ...

Have you ever thought about how to create a Web document scanning application using Ruby on Rails? In this tutorial, we go through how to create a Rails project with Dynamic Web TWAIN (DWT) SDK for loading, scanning and uploading document files.

This week, I made a new attempt, integrating Dynamsoft JavaScript Barcode SDK into the ongoing Flutter barcode plugin project. It is exciting to be capable of building web barcode reader apps with the same decodeFile() method used for mobile and desktop development.

As the world’s top scanner programming SDK, Dynamic Web TWAIN features a lot of compelling functionalities. By upgrading to the latest version, any web document scanning app built with Dynamic Web TWAIN can be compatible with mobile devices seamlessly. What will happen if you ...

The barcode localization algorithm is an essential step for barcode recognition within an image. However, for static images, the bigger size images have, the much more time the algorithm takes. Plus, the success rate of the algorithm may be interfered by the background color ...

While using Salesforce, your management system can conveniently extend new functionalities by installing apps from Salesforce AppExchange - the Salesforce store. How can you build a Salesforce app by yourself? In this article, I will share how to create a barcode reader app f ...

Generally, while doing barcode detection, we pass color images encoded in RGB or YUV to some barcode decoding APIs, in which the image data will be converted from color to grayscale and then from grayscale to binary. Operating pixels takes much CPU time. To accelerate image p ...

A few weeks ago, I wrote an article sharing how to read driver’s license information from PDF417 on Android. Comparing to building an Android native camera app, building a web camera app is much easier. In this article, let’s take a glimpse at a JavaScript sample, which is im ...

Previously, I shared an article demonstrating how to use Tesseract Python OCR to recognize the accompanying text of a 1D barcode. In this article, I will change the programming language to JavaScript, creating a JavaScript barcode scan app integrated with Tesseract JavaScript ...

In India, the Aadhaar card is used to store people’s biometric and demographic data. This article shares how to create a simple web app to decode the QR code printed on the Aadhaar card using Dynamsoft JavaScript SDK, as well as how to extract the information from the barcode ...

Dynamic Web TWAIN SDK v15.2 brings a set of new APIs for classifying images by tags. In this article, I will share how to use the latest JavaScript APIs to implement a simple web document management app from scratch.

Webpack is a JavaScript module bundler. It is widely used in web frameworks, such as React and Angular. This tutorial shows how to implement a simple web barcode reading app with webpack and Dynamsoft JavaScript Barcode library.

Vaadin platform, similar to GWT (Google Web Toolkit), is a set of web components that allow developers to implement HTML5 web apps using the Java programming language. This tutorial aims to help developers to create a simple web document scanning app with Vaadin and Dynamic W ...

Someone asked me how to create a real-time web barcode scanning app with a webcam. Is it hard to implement it? I’ve written an article sharing how to integrate Dynamsoft JavaScript Barcode Reader SDK into a React project. The remaining work is to make a webcam component. Sinc ...

Dynamsoft JavaScript barcode SDK is built based on WebAssembly, which provides high performance for reading barcodes in web apps. This tutorial aims to demonstrate how to quickly create a simple web barcode reader by using React and Dynamsoft JavaScript barcode SDK.

Progressive web apps (PWA), simply to say, are web apps that running like native apps on the desktop and mobile platforms. The advantages of PWA include installable, discoverable, linkable and so on. In this article, I’m trying to give a snapshot of a simple PWA barcode reade ...

AngularDart, similar to Angular built with TypeScript, is a web app framework written in Dartlang. It finally compiles to JavaScript.  In this article, I will share how to use Dynamsoft JavaScript Barcode SDK to create a simple web barcode reader app using AngularDart on Wind ...

Dynamsoft JavaScript barcode SDK is built based on WebAssembly. In this article, I will illustrate how to build a simple web barcode reader app by using Dynamsoft JavaScript barcode SDK and Angular.

This article shows how to use Dynamsoft C++ barcode reader SDK to create a Window runtime component, as well as how to use the WinRT component and JavaScript to build a UWP app on Windows 10.

Web Worker is a way to run JavaScript in background threads. The worker thread can perform some heavy works without interfering with the user interface. This article shares how to load WebAssembly and invoke Dynamsoft JavaScript barcode APIs in a web worker.

A JavaScript barcode SDK can be built in C/C++ for high performance. We can compile C/C++ code to a Node.js addon or WebAssembly. Which one is superior? Let’s try Dynamsoft Barcode Reader SDK to find the answer.

WebAssembly (Wasm) is a revolutionary technology for Web development. It aims to execute at native speed in web browsers. With WebAssembly, it is convenient to port C/C++ code for web client and server applications. Dynamsoft Barcode Reader 6.2 is the most potent barcode SDK ...

When searching for barcode SDK online, you can find lots of free and commercial SDKs. However, there are only a few of SDKs cross-platform, which is why Dynamsoft Barcode Reader is outstanding. Dynamsoft Barcode Reader SDK supports Windows, Linux, macOS, Android, iOS, and Ras ...

Last week, I had successfully built JavaScript and WebAssembly ZXing barcode SDK. In this post, I will use the pure JavaScript barcode SDK to create a simple client-side HTML5 barcode reader app, which works in any WebRTC supported web browsers.

If you are looking for a barcode SDK for web development, the ideal outcome is to find a pure JavaScript SDK. The pure JavaScript SDK means JavaScript APIs do not rely on any server-side code. However, most of the barcode SDKs are written in C/C++ and Java. They do not have c ...

Document Scanning is nothing new for mobile apps. I remember the first time that I installed a document scanning app was in 2010. However, Apple, Microsoft, and Google the giant tech companies got started to recognize the importance of document scanning technology recently. I ...

From version 4.x to 5.x, Dynamsoft improved Barcode SDK performance with a big leap. Unfortunately, only Windows edition is available for download so far. In this post, I will share how to create a Node.js extension with the preview version of Dynamsoft Linux Barcode SDK 5.2. ...

Dynamic Web TWAIN has been widely used for developing web browser based document scanning apps. Is it possible to embed Dynamic Web TWAIN APIs into a Chrome app or extension? In this post, I want to share what I went through while building a Chrome extension.

It was my first time to hear about WebAssembly when watching Google I/O ‘17. WebAssembly (wasm) lets developers compile C/C++ or other statically typed languages into JavaScript for building high-performance web apps. Assume I have a C/C++ barcode detection or OCR library dep ...

If you always stay tuned to Dynamsoft Barcode SDK, you should have noticed that starting with version 5.1, the SDK includes a JavaScript library which is similar to Dynamic Web TWAIN. The article aims to help developers get familiar with the relevant JavaScript Barcode APIs a ...

When using React and Dynamic Web TWAIN to create a web document scanning app, I was confused about how to load dynamsoft.webtwain.min.js, a global JavaScript library like jQuery, into my project. I spent some time searching Google for relevant questions, but it was hard to fi ...

Last week, I shared how to build a simplest React Native component from scratch. Now I want to do something more complicated. I will link Dynamsoft Barcode Reader SDK, which released as an AAR bundle file, to a React Native Barcode project and write some Java code as the brid ...

When using React Native to write mobile apps, JavaScript is the primary programming language. However, sometimes, you may want to call a platform API that not supported by existing React Native component or use a third-party Android library that built as an AAR file. For thes ...

Dynamsoft Camera SDK allows developers to build web camera apps with pure HTML, CSS, and JavaScript. In most cases, front-end programming skill is enough. Occasionally, you may want to add some server-side functionalities, such as file uploading and processing. In this articl ...

React Native is a JavaScript framework that enables developers to build mobile apps for Android and iOS platforms with one codebase. Even if you are a web developer, you can quickly develop mobile applications using React Native. Not like Cordova that uses WebViews, React Nat ...

Cordova is a mobile application development framework that enables developers to build Android, iOS and Windows Phone apps using HTML5, JavaScript, and CSS3. It uses web views to render UI elements instead of the platform’s native UI framework. Cordova can be extended to add ...

If you want to open webcam stream in a web browser, what technology will you choose? Probably many developers’ answer is HTML5. Yes, with the JavaScript API getUserMedia, it will be pretty easy to open webcam within web browsers. However, the API is not supported by some old ...

It is known that getUserMedia, the API defined by WebRTC, is the main method for accessing media capture devices such as webcam and microphone in web pages. The compatible desktop web browsers include Chrome, Firefox, Opera, and Edge. This article will share the resources for ...

Have you ever imagined to build a JavaScript document scanning solution for Windows, Linux, and macOS from one single codebase? To make it, you need to find a solution that compatible with different scanner driver types: TWAIN for Windows, SANE for Linux, TWAIN, and ICA for m ...

Dynamic Web TWAIN is a document scanning SDK that allows developers to build document management solutions in JavaScript. The beta version of Dynamic Web TWAIN for Linux is available for download. This post will illustrate how to build a simple web application to scan documen ...

Apache Cordova (formerly PhoneGap) is a mobile application development framework that enables developers to build mobile apps using CSS, JavaScript, and HTML. Different from Xamarin that converting C# code to native apps, Cordova composes apps with hybrid code - all UI layout ...

As Internet connection speed getting faster, more and more people tend to embrace cloud service. Any desktop applications could be transformed to cloud applications with better maintainability, security, and stability. End-users can use web browsers to get connected with soci ...

Building desktop applications is not as easy as developing web applications because it is platform-related. You may need to learn C# for Windows, C/C++ for Linux, and Swift for Mac. For Java developers, it is convenient to create universal desktop applications in Swing and Ja ...

Last week, I shared how to build PHP extension on Linux, as well as how to make a simple PHP barcode reader with a few lines of PHP code. In this post, I will illustrate how to implement an online barcode reader with the custom PHP extension, and how to deploy the PHP project ...

If you want to make a Web barcode reader app using node.js, you may find a node barcode module with npm or build it yourself. Node addons are the bridge between C/C++ libraries and JavaScript. In this tutorial, I will illustrate how to create node barcode addon on Ubuntu with ...

As cloud computing market continues to skyrocket, more and more IT companies tend to release cloud APIs for developers. Most cloud APIs are exposed via REST (Representational state transfer) Web service. In this post, I will illustrate how to create a barcode reader with Node ...

Do you know which programming language is currently ranking first on GitHub? It is JavaScript! JavaScript is not only used for HTML5 Web application development, but also for server-side programming with runtime environment Node.js. With npm, the package manager for Node.js, ...

AngularJS is a Web application framework for rendering dynamic Web content with MVC architecture. It reduces amount of JavaScript code with the feature of two-way data binding. More and more developers tend to use Angular for client-side development. Therefore, I’d like to sh ...

When writing code in IDEs (Visual Studio, Eclipse, Netbeans, Aptana, etc.), developers need to find useful APIs and relevant documentations quickly. The assist function (e.g. IntelliSense) is usually triggered by the shortcut keys Ctrl + space. See the screenshots of Microsof ...

In this tutorial, I’d like to share how to implement a simple Web application for document imaging and uploading with Dynamic Web TWAIN SDK (DWT) and Node.js.

Some Java developers asked a question about how to use Dynamic Web TWAIN (DWT) to upload image files when building a Web application with Struts. In this tutorial, I’d like to make a detailed explanation.

A few days ago, I read the article - Run .NET and Node.js code in-process with Edge.js, which inspired me to try a new way of WebSocket solutions in JavaScript. It is known that Node.js makes applications, which written in JavaScript, run on server-side. Let’s see how we can ...

Think of the game, we know that we have 4 teams in play. At a given time, all we need to see is where these 16 planes are. For the game engine, all it needs to know is the coordinates of these 16 planes. So we need to create another map which has a different value for each an ...

Today we start making our Modern Ludo Game from scratch.

A Chrome extension is a package of files including a manifest file, HTML files, JavaScript files and other resources. With extensions, we can add more functionalities to empower Chrome.

In this tutorial, I want to make a more complicated WebSocket demo, which enables me to capture images from scanners on server side, and view the images in desktop web browsers or mobile web browsers. Here is the flowchart:

Last week, I shared how to transmit an image between a WebSocket server and a Web client. Based on that, we can make a little bit of improvement. Today, I would like to share how to generate barcode on .Net server side and display it on web browser.

HTML5 WebSocket facilitates the communication between web browsers and local/remote servers. If you want to learn a simple websocket example, creating a WebSocket Server in C## and a Web client in JavaScript, you can refer to SuperWebSocket, which is a .NET implementation of ...

Last time, I shared my experience about how to use JavaScript saving HTML canvas data to local disk in Chrome. In this tutorial, I would like to share how to save HTML canvas data to remote service with JavaScript and PHP.

Recently, I found an excellent jQuery plugin jquery.qrcode.js, which is written by Jerome Etienne. In this article, I would like to share how to use the QR code plugin to implement a free online app with Google App Engine. You can try my demo http://dynamsoft-test.appspot.com/.

Recently, I read the article - Getting Started with WebRTC, and also learned the sample code from WebRTC codelab. It is really interesting that we can implement video chat, audio chat and even message communications with WebRTC (Web browsers with real-time communications). In ...

In HTML5, there is a new tag <canvas>, which is used to draw graphics via JavaScript. In this tutorial, I would like to share how to draw images on canvas, and how to save the canvas data to local disk by clicking button.

It’s been a while now since Microsoft released a Windows 8.1 Preview with a Preview of IE 11 too. No doubt many users have already tested it. It is apparent that Microsoft has entirely rebuilt the developer tools and made them much more beautiful and powerful. There are eight ...

ActiveX is a software framework created by Microsoft for sharing information and functionality among different applications. As for web application, ActiveX only works with Internet Explorer.