VintaSoft Twain .NET SDK provides JavaScript API and VintaSoft Web TWAIN service, which allow a web developer quickly and easily create cross-browser web applications for acquiring images from TWAIN image scanners in Windows and Linux, SANE image scanners in Linux, eSCL image scanners in Windows and Linux. Developed web applications can be used in all major web browsers.

VintaSoft Twain .NET SDK features for web development:

• General features

  • SDK can be used for developing ASP.NET Core, Angular, React.js, Vue.js, PHP or other JavaScript-based web application for Windows and Linux
  • SDK can be used for developing ASP.NET MVC or ASP.NET WebForms application for Windows
  • The SDK core for Web is written in JavaScript, also TypeScript modules are available
  • Scan documents in any modern web browser (Chrome, Firefox, Edge, Internet Explorer, Opera)
  • Control image scanner, which is compatible with TWAIN specification 1.x, in Windows
  • Control image scanner, which is compatible with TWAIN specification 2.x, in Windows and Linux
  • Control local image scanner, which is compatible with SANE API, in Linux
  • Control network image scanner, which is compatible with eSCL (Mopria) API, in Windows and Linux
  • Enumerate and select TWAIN/SANE/eSCL scanner
  • Acquire images from TWAIN/SANE/eSCL scanner
  • Preprocess images acquired from TWAIN/SANE/eSCL scanner
  • Save scanned images to a file or get the image file as Base64 string
  • Upload scanned images to HTTP(S)
  
  

• TWAIN/SANE/eSCL device selection

  • Enumerate TWAIN/SANE/eSCL devices available in the system
  • Select the TWAIN/SANE/eSCL device programmatically
  
  

• TWAIN/SANE/eSCL image scanning

  • Set TWAIN/SANE/eSCL device settings (page format, image size, image position, page orientation, image resolution, image brightness, image contrast, etc) programmatically
  • Asynchronously acquire images from TWAIN/SANE/eSCL scanner
  • Synchronously acquire images from TWAIN/SANE/eSCL scanner
  • Acquire a black-white, halftone, grayscale, palette or color image from TWAIN/SANE/eSCL scanner
  • Scan the whole page or page region from TWAIN/SANE/eSCL scanner
  • Scan front and/or back of page using duplex scanning
  • Use the automatic document feeder (ADF) for single and multi-page scanning
  • Cancel the image acquisition from TWAIN/SANE/eSCL scanner
  • Control any capability supported by TWAIN/SANE/eSCL device
  
  

• Image processing

  • Preprocess the scanned image before saving: invert, rotate, crop, resize canvas, despeckle, deskew, border detection, blank page detection, change brightness and contrast
  
  

• Image saving

  • Save scanned images to a BMP, JPEG, PNG, TIFF file
  • Save scanned images to a PDF or PDF/A document
  • Add the scanned image to a multipage TIFF file
  • Add the scanned image to a PDF or PDF/A document
  
  

• Image uploading

  • Upload scanned images to HTTP or HTTPS server
  
  

• Tutorials

  • Acquire images from TWAIN/SANE/eSCL image scanner in HTML+JavaScript application
  • Acquire images from TWAIN/SANE/eSCL image scanner in ASP.NET Core application
  • Acquire images from TWAIN/eSCL image scanner in ASP.NET Core + React.js application
  • Acquire images from TWAIN/eSCL image scanner in ASP.NET Core + Angular application
  • Acquire images from TWAIN/eSCL image scanner in ASP.NET MVC5 application
  • Acquire images from TWAIN/eSCL image scanner in ASP.NET WebForms application
  • Acquire images from TWAIN/eSCL image scanner in React.js application
  • Acquire images from TWAIN/eSCL image scanner in Angular application
  • Acquire images from TWAIN/eSCL image scanner in Vue.js application
  
  

• Demo applications

  • Demo applications for JavaScript, ASP.NET Core, ASP.NET Core + Angular, ASP.NET MVC and ASP.NET WebForms

Online resources

• Product web page: https://www.vintasoft.com/vstwain-dotnet-index.html
• Online documentation for .NET development: https://www.vintasoft.com/docs/vstwain-dotnet/
• Online documentation for Web development: https://www.vintasoft.com/docs/vstwain-dotnet-web/
• Online FAQ: https://www.vintasoft.com/vstwain-dotnet-faq.html
• Online code examples: https://www.vintasoft.com/vstwain-dotnet-examples.html
• Online Support Center: https://myaccount.vintasoft.com
• Online JavaScript TWAIN Scanning Demo: https://demos.vintasoft.com/JavaScriptTwainScanningDemo/
• Online ASP.NET Core TWAIN Scanning Demo: https://demos.vintasoft.com/AspNetCoreTwainScanningDemo/
• Online ASP.NET Core TWAIN Scanning Advanced Demo: https://demos.vintasoft.com/AspNetCoreTwainScanningAdvancedDemo/