Dynamsoft Developer Blog

Dynamic Web TWAIN is an SDK which enables document scanning from browsers. Under its hood, a backend service named Dynamsoft Service is running to communicate with scanners via protocols like TWAIN, WIA, eSCL, SANE and ICA. The service runs on Windows, macOS and Linux. Starting from Dynamic Web TWAIN v18.4,...

Web-based document management systems are evolving rapidly, and a critical feature often in demand is document rectification. The Dynamsoft Document Normalizer SDK offers a suite of user-friendly JavaScript APIs for document detection and rectification in web browsers. This article will guide you through the process of building a web-based document...

Dynamic Web TWAIN is an SDK to enable scanning documents from browsers and Dynamsoft Document Normalizer is an SDK to detect document borders and perform perspective transformation. The two can be used together so that we can automatically crop and straighten documents. A use case is to use a flatbed...

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 a document-scanning SDK which makes it possible to access document scanners in the browser. It comes with the support of various image formats. We can use it to create an on-premises online image converter. You can press the button above to have a try. It has...

Tag Image File Format, abbreviated TIFF or TIF, is an image file format for storing raster graphics images. It has several differences from most other image file formats: TIFF allows a flexible set of information fields called tags. TIFF allows a flexible combination of colorspace, bitdepth/datatype, and compression scheme. TIFF...

WebDAV stands for Web Distributed Authoring and Versioning. It is an HTTP extension that makes it easy to create, read, and edit files hosted on remote Web servers. Many HTTP servers or file sync and share applications support this protocol like Apache, Lighttpd, Seafile and Nextcloud. In this article, we...

Image cropping is a common image processing task where we only need a potion of an image. In most cases, we make a rectangular selection box for cropping. But for cases like document scanning, we need to make a polygonal selection box. Perspective transformation is needed to normalize the document....

Full-text search is a process of examining all of the words in every stored document to find documents meeting a certain criteria (e.g. text specified by a user). It is possible for the full-text-search engine to directly scan the contents of the documents if the number of documents is small....

IndexedDB is a low-level API for client-side storage of significant amounts of structured data, including files/blobs. It can be used to save images like scanned documents on the client for persistant storage. In this article, we are going to talk about how to use Dynamic Web TWAIN to scan documents...

Large language models (LLMs) are emerging which can help us in tasks like text summarization, translation, question answering, etc and OpenAI’s ChatGPT is one of the state-of-art models which is available via its web or API interfaces. ChatGPT can be useful for document management. One use case of it is...

Paper documents are still ubiquitous in our everyday work, like invoices, checks and printed books. It takes effort to manage them. With Dynamic Web TWAIN, we can build a web application to scan documents from document scanners. But further steps are required to better manage the documents and OCR is...

A Mobile Check Capture app, also known as a Check Deposit app or Mobile Check Deposit app, is a mobile application that allows users to deposit checks using their smartphones or tablets. It provides a convenient way for individuals and businesses to deposit checks without visiting a bank branch or...

AirPrint MFPs (Multifunction Printers) are printers that are compatible with Apple’s AirPrint technology. The eSCL (eXtensible Scanner Control Language) protocol, a driverless scanning protocol, is a part of the AirPrint technology. It facilitates wireless scanning functionality on AirPrint MFPs. Users can discover AirPrint MFPs on the same network and initiate...

A Razor class library project is essentially a project that includes Razor components and other related files that can be shared and distributed as a NuGet package. To develop a document scanning application that works for both desktop and web, we can package Dynamic Web TWAIN SDK into a Razor...

Dynamic Web TWAIN is an SDK which enables document scanning and viewing from browsers. It can display PDF files in a customizable viewer. In this article, we are going to build a web component with Stencil.js to wrap Dynamic Web TWAIN as a PDF viewer so that we can embed...

Patch Code is a barcode developed by Kodak for use in automated scanning. It is mainly used to classify or organize documents. Several documents may need to be scanned and we have to save them into different PDF files. Instead of running several separate jobs (loading the scanner with each...

Next.js is the recommended framework to create React applications with extra features like server-side rendering and an intuitive router. In this article, we are going to create a document scanning app with Next.js and Dynamic Web TWAIN. What You Should Know About Dynamic Web TWAIN Build a Document Scanning Web...

Oracle APEX (also known as APEX or Oracle Application Express) is an enterprise low-code development platform from Oracle Corporation that is used to develop and deploy web applications on Oracle databases. APEX provides a web-based integrated development environment (IDE) that uses wizards, drag-and-drop layout, and property editors to build applications...

FileMaker is a cross-platform relational database application. It integrates a database engine with a graphical user interface (GUI) and security features, allowing users to modify a database by dragging new elements into layouts, screens, or forms.1 It has become a low-code tool to build apps for businesses. There are some...

Chrome extensions are software programs, built on web technologies (such as HTML, CSS, and JavaScript) that enable users to customize the Chrome browsing experience.1 In this article, we are going to write a Chrome extension to add the document scanning function to web pages. Dynamic Web TWAIN is used to...

Quasar is a Vue.js-based framework, which allows web developers to quickly create responsive websites/apps. It can use Electron to build multi-platform desktop apps. In this article, we are going to build a document scanning desktop app with Quasar and Electron. Dynamic Web TWAIN is used to provide the ability to...

Dynamsoft Document Normalizer JavaScript SDK features document detection and rectification. It can be easily integrated into web applications with a few lines of code. In this article, we will create an Angular web application to demonstrate how to use the SDK to detect and rectify documents. Prerequisites Angular CLI: A...

Assume you have a document scanner at home or in the office. Is it possible to use iPhone or iPad web browsers to scan documents from the scanner? Before Dynamic Web TWAIN v18, the answer is no, because there is no standard JavaScript API for scanner access. Remote scan is...

The MediaStream ImageCapture API is an API for capturing images or videos from a photographic device. We can use it to enable the capabilities of the native device like turning on the torch and taking a high-resolution photo. It is supported on Chrome Android. You can check the compatibility here....

Dynamsoft recently released a new version of Dynamic Web TWAIN SDK v18.0. The new version supports eSCL protocol, which allows you to connect to network scanners. In addition to integrating eSCL into Dynamsoft service for Windows, Linux and macOS, Dynamsoft also brought an eSCL scanner communication application to Android platform....

Portable Document Format (PDF) is a file format developed by Adobe to present documents in a manner independent of application software, hardware, and operating systems.1 The basic types of content in a PDF are: Typeset text stored as content streams; Vector graphics for illustrations and designs that consist of shapes...

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...

Dynamic Web TWAIN has a new scanDocument API since v17.2, which makes it easy to capture documents using mobile cameras with its document border detection and editing feature along with ready-to-use UIs. In this article, we are going to create a mobile document scanning app using Ionic Vue. Ionic is...

Dynamsoft Document Normalizer is an SDK to detect the boundary of documents and runs perspective transformation to get a normalized document image. In this article, we are going to build an iOS document scanner using Dynamsoft Document Normalizer and AVFoundation. A demo video of the final result: The scanning process:...

In the previous article, we built a Capacitor document scanning plugin based on the Dynamsoft Document Normalizer SDK. In this article, we are going to build a document scanner in Angular using the Ionic framework. Demo video of the final result: The app can take a photo or load an...

Capacitor is an open-source native runtime created by the Ionic team for building Web Native apps. We can use it to create cross-platform iOS, Android, and Progressive Web Apps with JavaScript, HTML, and CSS. Using Capacitor plugins, we can use JavaScript to interface directly with native APIs. In this article,...

In the previous article, we’ve built a document normalization React Native Vision Camera frame processor based on Dynamsoft Document Normalizer SDK. In this article, we are going to use it to build a React Native document scanning demo app. This article is Part 2 in a 2-Part Series. Part 1...

Mobile document scanning apps bring convenience to users by allowing them to scan travel documents, ID cards, passports and other types of documents on the go. This article aims to help C# developers, who do not have the background in computer vision, to build a mobile document scanning app for...

Dynamsoft Document Normalizer is an SDK to detect the boundary of documents and runs perspective transformation to get a normalized document image. A normalized image can be used for further processing such as OCR. In this article, we are going to create a React Native Vision Camera frame processor plugin...

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...

A progressive web application (PWA) is a type of application software delivered through the web1. It is able to be installed like a local app so that we can access it later without an Internet connection. In this article, we are going to build a document scanning desktop app with...

Tag Image File Format, abbreviated TIFF or TIF, is an image file format for storing raster graphics images. It is a complex format, defining many tags in each file. TIFF was created as an attempt to get desktop scanner vendors of the mid-1980s to agree on a common scanned image...

Suppose you are a C# developer who wants to use Dynamsoft Document Normalizer to implement a desktop document scanner application. Since Dynamsoft Document Normalizer is a C/C++ library, you may encounter some interoperability issues when using it in your C# project. In this article, we will help you build a...

Tauri is a framework for building desktop apps for all major platforms. Developers can integrate any front-end framework that compiles to HTML, JS and CSS for building their user interface. The backend of the application is a Rust-sourced binary with an API that the front-end can interact with. Different from...

Dynamsoft Document Normalizer is a document scanning SDK that can be used to do edge detection, perspective correction, and contrast enhancement. Its C/C++ API is available on Windows and Linux. In this article, we will show you how to build a Python wrapper for Dynamsoft C/C++ Document Normalizer SDK, as...

Dynamsoft Document Normalizer is an SDK to detect the boundary of documents and runs perspective transformation to get a normalized document image. A normalized image can be used for further processing such as OCR. In this article, we are going to create an Android document scanner using Dynamsoft Document Normalizer...

Dynamic Web TWAIN is an SDK which makes it possible to scan documents in browsers. Selenium is a suite of tools for automating web browsers, like Firefox, Edge and Chrome. Primarily, it is for testing purposes, but it can also serve for other tasks. In this article, we are going...

Dynamic Web TWAIN has a new scanDocument API since v17.2, which makes it easy to capture documents using mobile cameras with its document border detection feature. Along with the RemoteScan feature that connects physical document scanners, we can now build a decent mobile document scanner with web technologies. In this...

Since .NET 6 Preview 3, it is possible to host Blazor web applications in a WinForms/WPF app using the BlazorWebView control. Behind BlazorWebView is WebView2, which uses Microsoft Edge as the rendering engine to display the web content in native apps. Developers can now adopt a hybrid app approach, utilizing...

Nowadays, web technologies have been used to create cross-platform apps. There are Capacitor for mobile development and Electron for desktop development. We can also use web technologies in existing apps. For example, the popular Java IDE, IntelliJ IDEA, uses JCEF (Java Chromium Embedded Framework) to create plugins. In this article,...

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...

As the dominant JavaScript document scanning SDK, Dynamic Web TWAIN has recently adopted WebAssembly as the new weapon. From version 17.2, Dynamic Web TWAIN does not only support cross-platform (Windows, Linux, and macOS) scanner access, but also allows developers to utilize desktop and mobile cameras to scan documents using JavaScript....

A few months ago, I published a cross-platform desktop barcode reading application built with Qt Python and Dynamsoft Barcode Reader. The supported input sources include real-time camera stream, image files, and screenshots. In this article, I will set document scanner as the input source. The SDK used for document scanning...

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...

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 and the template engine - jade. About...

Django is a popular framework of Python for web development. In this tutorial, we will create a web application with Django and Dynamic Web TWAIN. About Dynamic Web TWAIN Python Development Environment Python 3.7.9 python --version Django 3.2.7 python -m pip install Django python -m django --version Overall steps The...

The Clipboard API allows web applications to read and write the clipboard’s contents, which makes it convenient to paste scanned documents to other applications like Word, email clients and load images from the clipboard in a Dynamic Web TWAIN (DWT) application. Here is a demo video of copying scanned documents...

Dynamic Web TWAIN (DWT)’s Remote Scan feature makes it possible to scan documents from your scanner or multi-function printer (MFP) directly to any device. You may wonder what other network scanning options exist. This article is going to give a brief overview of scanning over the network and why DWT’s...

Email is a convenient way to send scanned documents. The ability to send emails is built into many network scanners. For example, HP All-in-One devices have a Scan-to-Email app. However, we cannot use these devices’ built-in email-sending ability if we want to control the scanning process in a web scanning...

Continuous file synchronization programs synchronize files between two or more devices in real time. We can use them to sync scanned documents so that we can access the files on multiple devices. There are many cloud storage services which do the job, like Box, Dropbox, Onedrive and Google Drive. There...

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 TWAIN service in Chrome OS. Building...

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 desktop document scanning and management application for Windows, Linux, and...

Since version 16.1, Dynamic Web TWAIN (DWT) has added a remote scan feature. If there is a device running a background scanning service (Dynamsoft Service), other devices can access it via an Intranet along with a proxy service to use scanners connected to that device, which makes it convenient to...

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. Image source: https://www.amazon.com/Conferencing-Recording-Classroom-Real-time-Definition/dp/B08V4WLPX1/ A document camera has the following benefits: Users don’t have...

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 Should Know About Dynamic Web TWAIN (Include JS libs, API docs and...

Blazor is a framework for building interactive client-side web UI with .NET1. Users can create interactive UIs in C# instead of JavaScript. Server-side and client-side app logic can both be written in .NET. In the previous article, we’ve created a barcode reader with Blazor using Dynamsoft Barcode Reader. In this...

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 document scanner and load images from local...

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. Installation Dynamic Web TWAIN 17.0 Ruby 2.5.1 sudo...

In the past, Dynamic Web TWAIN only supported HTML DOM elements. Some web frameworks based on Shadow DOM, like Polymer, could not work with Dynamic Web TWAIN. Starting from version 16.1, Dynamic Web TWAIN was fully compatible with Shadow DOM. This article shares how to integrate Dynamic Web TWAIN SDK...

Dynamic Web TWAIN has added some exciting features related to the mobile platform since its version 16. Document capturing via mobile cameras, 16.0 PDF Rasterizer mobile edition, 16.0 LoadImageEx supports mobile platform, 16.1 Acquiring images from a remote scanner, 16.1 The scanDocument API which makes it easy to call a...

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 invoke the scanner control APIs on...

With the release of Apple M1, Mac has started their journey transitioning from x86_64 to arm64. Dynamsoft has not released any package for the new architecture Mac yet. However, it does not mean we can’t run our existing software on the new platform. Rosetta2 could translate the Intel Mac software...

ASP.NET Core enables C# application to run on *nix operating systems. In this tutorial, we are going to play with ASP.NET Core and Dynamic Web TWAIN SDK to build a DotNet Core document scanning application for Windows, Linux, and macOS. What You Should Know Preparation First and foremost, we should...

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...

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. Building Document Management App in JavaScript Create an HTML file and...

Laravel is a PHP Framework. This article shares how to use Dynamic Web TWAIN to scan and upload documents in a Laravel project. Installation Composer Laravel: composer global require laravel/installer Dynamic Web TWAIN SDK v17.1. Copy Dynamic Web TWAIN Resources folder to the public folder of the project. PHP 7.x...

Mono is an open source implementation of Microsoft’s .NET Framework. It aims to help C# developers create cross-platform .NET applications. Although .NET Core is born for multiple platforms (Windows, Linux, and macOS), it is so far not a substitution of .NET framework. If you have an existing project written in .NET framework and want to...

This tutorial aims to help .NET developers use Dynamic .NET TWAIN in Unity projects. Download Unity Dynamic .NET TWAIN Unity Infinite Loading Issue It’s weird when running the Unity editor first time, I got stuck on the loading screen. If you suffer from the issue, remove %USERPROFILE%\AppData\Roaming\Unity, %USERPROFILE%\AppData\Local\Unity, and %USERPROFILE%\AppData\LocalLow\Unity, and...

RequireJS is a JavaScript file and module loader that implements Asynchronous Module Definition(AMD) API for in-browser use. Similar to require() used in Node.js, we can use requirejs() to load any JavaScript module for web apps. In this post, I will share how to use Dynamic Web TWAIN with RequireJS. If...

Dynamic Web TWAIN for Linux was introduced on 11/03/2016. It enables interaction with document scanners from within a browser on Linux. The underlying technology is SANE (Scanner Access Now Easy). We do not need to write any code other than JavaScript when using Dynamic Web TWAIN. Learn how to to...

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 macOS. A good news...

ZK is a Java Web framework that similar to GWT. Some developers have no idea how they can integrate DWT (Dynamic Web TWAIN) into a ZK Web project. I have successfully made it. The process is not too hard, but a little bit tricky. First ZK Web Project with Eclipse...

MongoDB is known as a NoSQL database, which uses a JSON-like document structure by key-value pairs. Comparing to the relational database like MySQL, MongoDB is easier and more scalable. Especially when processing big and complex data, MongoDB can perform faster and better. In this tutorial, let’s take a glimpse of...

GWT (Google Web Toolkit), a development toolkit that allows developers to build complicated JavaScript Web applications in Java, has been used by many outstanding products, such as Google AdSense, Google AdWords, and so on. It is open source, and completely free. In this post, I’d like to share how to...

Last week, I introduced how to create a Web application for document imaging and uploading with Dynamic Web TWAIN SDK and Node.js. In this tutorial, I’d like to share a more convenient way to implement such a solution in Go. You can just copy the client-relevant resources and page files...

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. Download and Installation Dynamic Web TWAIN download Node.js download Creating a Web Server with Node.js Run your command line tool to install two...

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. How to Upload Files with Struts Using NetBeans IDE, we can quickly create a Struts...

If you have a TWAIN-compliant scanner, you can easily control it with Dynamic Web TWAIN or Dynamic .NET TWAIN. Both SDKs can help you create some excellent applications for document scanning and management on PCs. However, have you ever complained that it’s so inconvenient to stay with your scanners and...

In this tutorial, I am about to make a more complicated solution – Web-based document imaging capture, combining the implementation of Java TWAIN and Java WebSocket with Dynamic .NET TWAIN library, C#, JNI, Java Swing, Jetty and HTML5 WebSocket. Here is the workflow: Prerequisites You need to read the following...

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:   Prerequisites Read Image Transmission between a HTML5 WebSocket Server and...

In today’s “big data era”, more and more organizations are using an enterprise content management (ECM) or record management system (RMS) to help maintain and manage the documents. Digitizing documents and storing them in a central database has become an important part of many organization’s document management workflow. For this...

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,...

Simplify your document scanning and editing process_ With the development of digital devices (scanners, webcams) and information delivering and sharing online, more users choose to manage and store documents online, such as legal papers, contracts and IDs. This perfectly solves the problems of traditional paper management: Waste of papers; Waste...