VintaSoft Twain .NET SDK v10.2
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    Acquire images from scanner in a web application
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    The main task in working with documents is scanning, processing and saving of scanned images to a file.

    Usually the scanner is connected to the client's computer, so the access to it should be performed from a client-side of the web application.

    There are several ways to acquire images from scanner in a web application.


    Method 1.

    Use the ActiveX component for controlling the scanner on a client-side of web application. This method can be performed in MS Internet Explorer only. The method is becoming obsolete because the usage of ActiveX components is switched off by default in Internet Explorer starting from Windows 8. The method can be implemented using VintaSoft Twain ActiveX. The detailed information can be found here.


    Method 2.

    Use the .NET 2 component for controlling the scanner on a client-side of web application. This method can be performed in MS Internet Explorer only. The method is becoming obsolete as the IEHost support is removed from .NET Framework 4. The method can be implemented using VintaSoft Twain .NET SDK. The detailed information can be found here.


    Method 3.

    Use the NPAPI plug-in for controlling the scanner on a client-side of web application. This method can be performed in Chrome, Firefox and Opera browser. Unfortunately, the method is becoming obsolete as since 1st of September, 2015 the Chrome browser drops out the support for NPAPI plug-ins. Mozilla also, starting from 2015, makes many things for complicating the usage of NPAPI plug-ins in Firefox.


    Method 4.

    Use the local service for controlling the scanner and access the service from a client-side of web application. This method can be used in all modern browsers (Chrome, Firefox, Edge, Internet Explorer, Opera). At the moment this method is a standard solution for implementation of scanning in a web application.

    The method can be implemented using VintaSoft Twain .NET SDK. The detailed information can be found here: