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Dynamic Web TWAIN Service

Dynamic Web TWAIN Service (previously known as Dynamsoft Service prior to version 19) is a local service installed on end-user devices to make it possible to access imaging devices in the browser. It also provides other functions like image processing, caching, barcode reading, OCR and system function calls.

architecture

To use Dynamic Web TWAIN in the browser, you have to install the service beforehand.

Other Ways of Accessing Scanners in the Browser

Previously, technologies like ActiveX for Internet Explorer and NPAPI plugins for older versions of Chrome allowed scanner access directly in the browser. However, these technologies are now deprecated. Modern browsers lack built-in APIs for document scanning. While Chrome offers an experimental WebUSB API, it has limited functionality. Therefore, using a local service is currently the most viable solution.