Dynamic Web TWAIN 18.4

Version Highlights

• Enhanced encryption algorithm to strengthen local cache security.
• Added the ability to stylize selection box in Viewer and Image Editor.
• Added a new function that allows you to export selected image area to either a blob or base64 format.
• Added a property to relocate the server-side folder that hosts the Dynamsoft Service installers.
• Added a new blank page detection method.
• Dynamsoft Service now supports document scanning via RESTful APIs.

Viewer and Image Editor Improvements

• Added 'updateSelectionBoxStyle()' to both the Viewer and the Image Editor to allow for custom styling of the rectangular selection box used when selecting a portion of an image.

Editor Functionality

• Added 'OutputSelectedAreaAsync()' to export the selected image area to blob or base64.

Resource Optimization

• Added 'Dynamsoft.DWT.ServiceInstallerLocation' to allow you to move the dist folder to a different location.

Buffer

• Added 'MoveToDocumentAsync()' and 'CopyToDocumentAsync()' to allow for more multi-document handling.
• Added 'IsBlankImageAsync()' as an additional blank page detection method using a different algorithm than the existing 'IsBlankImage()' and 'IsBlankImageExpress()' functions. This method allows for sensitivity customization, enabling users to overlook minor marks and disregard background patterns. This API currently is Microsoft Windows only.

PDF Rasterizer

• Added new ReaderOptions interface.
• Added functions 'SetReaderOptions()' and 'GetReaderOptions()' to utilize the new ReaderOptions interface.

File Saving

• Saving a Black and White JPG will now automatically convert the image to grayscale prior to saving.