Dynamic Web TWAINRelease Notes

Scanner Core Module
  • Scanner Core Module
  • Optional Addon Modules
How to Upgrade?

15.2 (09/19/2019)

New

  • [HTML5] Added the capability to add tags to images. The tags can then be used to filter the images. The new APIs are TagImages, ClearImageTags, SetDefaultTag and FilterImagesByTag.

IMPROVED

  • [HTML5] Tidied up the Dynamsoft Service installer by removing redundant files.
  • [HTML5] Unified image decoding capabilities for JPEG and PNG on Windows, macOS and Linux.
  • [HTML5] Improved the speed of PDF decoding by loading the file as a whole instead of per page.
  • [HTML5 | Win] Improved Windows buffer management so that its capacity is only limited by the size of disk space on the machine.
  • [HTML5 | macOS] Improved macOS installers for better user experience.
  • [ActiveX | Win] Aligned PDF rasterizer in ActiveX so that it shares the same feature set with the HTML5 edition.

FIXED

  • [HTML5] Fixed a bug with the API CreateTextFont where the text takes up extra space when it is rotated by 90 degrees.
  • [HTML5] Fixed a bug where printing results in unnecessary extra blank pages in Firefox or IE11.
  • [HTML5] Fixed a bug where a missing filename parameter results in upload failure.
  • [HTML5 | Win] Fixed a bug where the library attempts to download an incorrect installer when the Barcode Reader add-on is used.
  • [HTML5 | Win] Fixed a bug with the API GenerateURLForUploadData so that it returns an URL that shows the correct SDK version.
  • [All] Fixed a bug where 8-bit image data can't be compressed as a JPEG-TIFF.
  • [All]Fixed a bug with the event OnTopImageInTheViewChanged where it doesn't get triggered if images are acquired into an empty buffer.

15.1 (08/13/2019)

New

  • [HTML5 | macOS] Added 64bit support to macOS.
  • [HTML5 | macOS & Linux] Expanded the event OnPostTransferAsync from Windows to macOS & Linux. The method serves as the asynchronous counterpart to the existing synchronous event OnPostTransfer. Information about the transferred image is returned in the event listener.
  • [HTML5 | macOS & Linux] Expanded the method startScan from Windows to macOS & Linux. The method accepts a JSON object that specifies all the scan parameters. This makes it simpler and even faster to initiate a scan job. At the same time, you can specify how you want the scanned data to be processed by adding extra output parameters in the same JSON object.

IMPROVED

  • [HTML5 | Win] Improved the methods ConvertToBlob, ConvertToBase64 and image loading methods so that they can handle much bigger files.
  • [HTML5 | Linux] Improved the image encode/decode functionalities on Linux so that it can encode/decode files just like Windows.
  • [HTML5 | macOS & Linux] Expanded PDF related capabilities to macOS and Linux so that all 3 platforms share the same features.
  • [HTML5 | macOS & Linux] Improved the PDF decode engine so that it can load more PDF files without invoking the PDF rasterizer.

FIXED

  • [HTML5 | Win] Fixed a bug where some scanners can only scan with document feeder but not the flatbed.

15.0 (06/27/2019)

New

  • [HTML5 | Windows] Added a new method startScan which accepts a JSON object that specifies all the scan parameters. This makes it simpler and even faster to initiate a scan job. At the same time, you can specify how you want the scanned data to be processed by adding extra output parameters in the same JSON object.
  • [HTML5 | Windows] Added a new event OnPostTransferAync as the asynchronous counterpart to the existing synchronous event OnPostTransfer. Information about the transferred image is returned in the event listener.
  • [HTML5 | Windows] Added a new PDF core DLL as the default engine for PDF encoding & decoding. This new PDF DLL has added support for JPEG2000 and JBIG2 compression types.
  • [HTML5 | Windows] Added a new method PDF.Write.Setup which accepts a JSON object that contains all the parameters needed for creating PDF files.
  • [HTML5 | Mac] Added a new file libDynamicImg.dylib to the macOS edition which provides functionalities equal to those provided by the file DynamicImage.dll on Windows. Essentially, this file offers better image encoding and decoding.
  • [HTML5] Added a pair of methods IndexToImageID and ImageIDToIndex which converts the index of an image to its image id or vice versa. The id of an image is an unique number that can be used to specify the image.
  • [HTML5] Added a new event OnIndexChangeDragDropDone which is triggered when you drag and drop images to resort them in the viewer. The event returns the from and to indices for the operation.

IMPROVED

  • [HTML5] Improved the method AcquireImage by adding two more options IfGetImageInfo & IfGetExtImageInfo to its parameter optionalDeviceConfig which are true by default and means extra image info will be returned with each transferred image.
  • [HTML5 | Windows] Improved the method SetFileXferInfo so that you can specify a naming pattern for the transferred images when the transfer mode is Disk File.
  • [HTML5] Improved the performance of Dynamsoft Service by allowing two time-consuming operations to occur concurrently. The affected methods are ConvertToBlob, ConvertToBase64, GenerateURLForUploadedData as well as a few HTTP Upload methods.
  • [HTML5] Improved service connecting efficiency by removing optional ports and use the same ports no matter it's 64bit service or 32bit. Also, during initialization, JavaScript will attempt to connect to the core scan module directly instead of connecting to the service first.
  • [HTML5] Improved the functions ConvertToBase64, ConvertToBlob, GenerateURLForUploadData, HTTPUpload, HTTPUploadAllThroughPostAsMultiPageTIFF, HTTPUploadAllThroughPostAsPDF, HTTPUploadThroughPost, HTTPUploadThroughPostAsMultiPagePDF, HTTPUploadThroughPostAsMultiPageTIFF, HTTPUploadThroughPostEx so that the current indices of the images which were operated on in these methods are returned in the callback functions. This is due to the fact that the indices might have changed during these time-consuming operations.

CHANGED

  • [HTML5 | Windows] 64bit service has been made the default option on 64bit machines.

FIXED

  • [HTML5 | Windows] Fixed a bug where it takes too much time to load a network file in RDS-mode Chrome.
  • [HTML5 | Windows] Fixed a bug where an unwanted black line may appear as the right edge of saved TIFF files.

14.3.1 (1/15/2019)

New

  • [ActiveX] Added method GetImagePartURL to work with the Barcode Reader.
  • [HTML5] Added a few global settings which may speed up the initialization process of the SDK. The settings are IfCheckDCP, IfCheckDWT, IfDisableDefaultSettings and IsLicensePromptFriendly.

IMPROVED

  • [HTML5 | Windows] Improved the TIFF compression algorithm when it's set to JPEG so that the resulting file size is significantly reduced.
  • [ActiveX & HTML5 | Windows] Included the Webcam and Barcode reader libraries in the service installer for easier distribution.
  • [HTML5] Improved the built-in image viewer to be more responsive when navigating through images.

CHANGED

  • [All Editions] Changed the Hex Code for representing a color from #BBGGRR to #RRGGBB for all methods that may require a color as one of its parameters.

FIXED

  • [HTML5 | Windows] Fixed a bug where the method LoadImageFromBase64Binary may fail to decode a string.
  • [HTML5 | Windows] Fixed a bug where the service may crash during string conversion.
  • [File Uploader] Fixed a bug where the upload module may fail to open 4 threads for uploading.

14.3 (11/20/2018)

IMPROVED

  • [All Editions] Unified the installation prompt for all editions.

FIXED

  • [HTML5] Fixed a bug where images to print appear shrunken when rotated.
  • [HTML5] Fixed a bug where the method CancelAllUpload() only cancels one job.
  • [HTML5] Fixed a bug where OCR Pro Full license gives out an error message when used on the client-side.

14.2 (10/16/2018)

IMPROVED

  • [All Editions] Simplified the installation process of the SDK by putting multiple installers together. From this version on, you can get the Dynamsoft Service, Dynamic Web TWAIN and its PDF Rasterizer addon installed with one installer.
  • [HTML5] Improved the method ConvertToBlob so that it can be called multiple times in a row.
  • [File Uploader] Added a property FormField to allow adding extra fields when uploading.

FIXED

  • [HTML5] Fixed a bug with the file DynamicSocket.dll to avoid service crash.

CHANGED

  • Removed Dynamsoft Camera SDK related files.

14.1 (9/06/2018)

IMPROVED

  • [ActiveX| Windows] Improved the SelectSource() method so that it can also be used asynchronously.
  • [File Uploader] Updated the upload module so that the information returned from the server can be accessed in the callback functions of an upload job.
  • [File Uploader] Added the version number of the library to the name of the library so that different versions of the library can co-exist.

FIXED

  • [HTML5] Fixed a bug with the event OnInternetTransferPercentage which doesn't fire when IfShowCancelDialogWhenImageTransfer is set to false.
  • [HTML5] Fixed a bug with the image editor where it stops responding after you scan or load new images without saving the currently modified image.
  • [HTML5] Fixed a bug with the image editor where it no longer adapts to the size change of the browser window after you pressed the scan button in its toolbar.
  • [HTML5] Fixed a bug that some files would fail to load when you drag and drop multiple TIFF files to load in Dynamic Web TWAIN.
  • [HTML5] Fixed a bug where loading a file from a path that is composed of Unicode characters would fail.
  • [HTML5 | Windows] Fixed a bug where the multi-user service doesn't start under the Enhanced Mode.
  • [HTML5 | macOS] Fixed a bug on macOS where the built-in Select-Source dialog appears to be too wide.
  • [HTML5 | macOS] Fixed a bug on macOS where "Undefined" shows up as available sources.
  • [HTML5 | macOS] Fixed a bug on macOS where you can't press Ctrl to select multiple zones on an image. Instead, you need to use the meta Key.

CHANGED

  • [File Uploader] Changed GenerateURLForUploadData to be an asynchronous method.
  • [File Uploader] Changed the module so that the encrypted files which are in the cache waiting to be uploaded will be cleared when the upload fails or when it is cancelled

Previous Changes >>

It is a light-weighted PDF library working with the Scanner Core module of Dynamic Web TWAIN SDK on the client side to convert text-based PDF files into images and display in the image viewer.

10.3.1.0124 (06/27/2019)

Improved

  • [HTML5 | Windows] Changed the old DLL names to reflect the fact that they only work as the rasterizer.
  • [HTML5 | Windows] Removed the old PDF.Download method.
  • [HTML5 | Windows] Removed license limitation on the method IsTextBasedPDF so that it can always be used regardless of whether a license is in place.

10.3.0.0712 (9/06/2018)

Improved

  • Added the version number of the library to the name of the library so that different versions of the library can co-exist.
  • Added a method IsModuleInstalled() to detect whether the library has been installed on the client machine.
  • Updated the library to version 10.3.0.0712 which is more stable and uses the memory more efficiently. The new library also has fixed a bug where a loaded PDF may appear tilted.

10.2.0.1123 (7/17/2018)

Fixed

  • Fixed the typo EnumDWT_ConverMode to EnumDWT_ConvertMode

10.2 (1/16/2018)

Improved

  • Upgraded the current PDF Rasterizer engine for Windows client.

New

  • Added support for macOS client and Linux client.

9.6 (03/01/2016)

New

  • Added PDF Rasterizer Add-on to convert text-based PDF files to images. This way, text PDF files can be successfully displayed in the viewer of the Dynamic Web TWAIN Scanner Core module.
  • Available APIs are:
    • Addon.PDF.SetConvertMode: to turn on or off the PDF rasterizer feature.
    • Addon.PDF.Download: to deploy the PDF library from the server side to the client machine.
    • Addon.PDF.SetPassword: set the password to decrypt the targeted PDF file.
    • Addon.PDF.SetResolution: to set the output image resolution.
    • Addon.PDF.IsTextBasedPDF: to detect if a PDF file is text-based or not.

A professional linear & 2D barcode reading library for recognizing barcode image from any document captured from scanners, webcams or file systems.

7.1 (09/19/2019)

  • Updated the library to version 7.1.

7.0 (08/13/2019)

  • Updated the library to version 7.0.

6.5.2 (06/27/2019)

  • Updated the library to version 6.5.2.

6.4.1 (01/15/2019)

  • Expanded the Barcode Reader feature to the ActiveX.
  • Updated the Barcode reader libraries to version 6.4.1.

6.3 (09/18/2018) (Since DWT 14.1)

5.2 (09/18/2017)

IMPROVED

  • Improved the localization and recognition algorithms for PDF417 barcodes.
  • Optimized the de-blur algorithm for 1D barcodes to improve the recognition accuracy.
  • Optimized the timeout support. Now it is possible to stop barcode recognition by timeout.
  • Increased QR Code and DataMatrix barcode recognition speed for B&W images.

5.1 (06/20/2017) (since DWT 13.0)

NEW

  • Reconstructed the barcode reader SDKs to closely working with the Scanner Core module of the Dynamic Web TWAIN SDK.
  • Added support for reading barcodes from a base64 string image.
  • New de-blur algorithm for 1D barcodes to improve the accuracy when scanning linear barcodes from out-of-focus, blurred images.
  • Added new APIs that enable you to specify page numbers, barcode regions and barcode angles for barcode detection. These greatly improve the decoding workflow and barcode reading efficiency.
  • Added ImageCaptureDevice API to set the capture device (scanner, camera or fax) being used to scan barcode images. When set, it will use a better and more appropriate image processing technique to the images captured from that device.
  • Added BarcodeColorMode API to set the ink color for barcodes searching.
  • Added BarcodeTextEncoding API to set barcode text encoding mode so that you can display special characters properly.
  • Added TimeoutPerPage API to set the maximum amount of time for reading barcodes on one page.
  • Added Angle property to return the rotation angle of a detected barcode.

IMPROVED

  • Updated barcode reader library with improved positioning algorithm that can better identify and locate DataMatrix barcodes.

4.3 (10/13/2016) (DWT12.1~12.3.1)

New

  • New localization algorithm was implemented for 1D barcode scanning to improve barcode reading speed.
  • New multi-thread processing was implemented for 2D barcode reading to improve decoding accuracy.

IMPROVED

  • Improved recognition for perspective QR Codes.
  • Optimized decoding performance for large size, special angle and multiple 1D barcodes.
  • Other small fixes and tweaks.

4.2 (04/08/2016) (DWT12.0)

IMPROVED

  • Changed 1D barcode decoding module to improve recognition accuracy.

4.1 (01/21/2016) (11.3~11.3.2)

IMPROVED

  • Improved positioning algorithm to better identify and localize DataMatrix barcodes.

4.0 (07/23/2015) (11.2)

New

  • Added CodeBar, Code_93, EAN_8, EAN_13, ITF, UPC_A, UPC_E support to the 1D Barcode Reader module.
  • Added support for PDF417 and DataMatrix.

3.0 (08/13/2015) (DWT11.1)

New

  • Added support for QR Code and Industrial 2 of 5.

2.0 (07/17/2012) (DWT11.0, internal barcode dll version 9.6)

New

  • Added support for reading CodeBar, Code_93, EAN_8, EAN_13, ITF, UPC_A, UPC_E.

FIXED

  • Fixed the bug in the Barcode Reader add-on where barcode location fails for 200 DPI.

1.0 (01/20/2015) (since DWT10.1~10.2, internal barcode dll version 9.5)

Updates in this version include 1D barcode improvements in accuracy and performance for Code 39 and Code128 recognition. Also image preprocessing is improved. For Code 128, the recognition ratio and speed have jumped up by as much as 30 percent.

15.0 (06/27/2019)

Improved

  • Fixed a bug where the video stream may appear distorted if the DIV to put the stream has a different aspect ratio.

14.3.1 (01/15/2019)

Improved

  • Added a new method IsModuleInstalled to detect whether the webcam module has already been installed on the local system.
  • The method GetImageURL and GetImagePartURL are renamed to GetFrameURL and GetFramePartURL.
  • Fixed a bug where the memory may fail to be freed after a frame is captured either by CaptureImage or GetFramePartURL.

14.2.0.1022 (11/20/2018)

Improved

  • [Webcam Addon] Added Webcam addon back for Windows with a new feature to embed the video stream on the page.

It is a light-weighted pure JavaScript SDK to enable document capturing via the built-in mobile camera in a web page.

2.0 (06/06/2018)

New

  • Built-in & customizable image viewer, thumbnail viewer and image editor available.
  • Support embedding video stream into a web page.
  • Support common gestures to navigate or zoom in/out images in the image viewer.
  • Advanced image processing: automatic document border detection and automatic prospective deskew.
  • Input image formats include JPEG, PNG, GIF, BMP and WebP.
  • Output image formats include PDF, TIFF, JPEG, BMP, and PNG.
  • Various compression options available when encoding images as TIFF and PDF.
  • Support uploading images via HTTP(s) Protocol.
  • Support downloading a captured image to the local disk of your device.

1.0 (06/10/2017)

New

  • Support calling the mobile system API to grab images from the image gallery and device camera.
  • Support viewing captured images in an HTML image viewer.
  • Support basic image editing: Zoom in/out, Rotate, Crop.

It is one of the best OCR engines available in the market. It is designed to work with the Scanner Core module of the Dynamic Web TWAIN.

1.1.0.0625 (08/13/2019)

Improved

  • [OCR Pro] Added a feature to read multiple zones in one OCR operation.

1.1.0.0625 (06/27/2019)

Improved

  • [OCR Pro] Fixed a bug where the OCR result may not be readable when the target language is Arabic.

1.0.0.425 (11/20/2018)

Improved

  • [OCR Pro] Added a new feature to allow multiple OCR processes to run concurrently on the server side.

1.0.0.425 (09/06/2018)

Improved

  • [OCR Pro | OCR Basic] Added the version number of the library to the name of the library so that different versions of the library can co-exist.
  • [OCR Pro | OCR Basic] Added a method IsModuleInstalled() to detect whether the library has been installed on the client machine.

1.0.0.425 (07/17/2018)

Improved

  • [OCR Pro] Better mechanism to verify the OCR license.

1.0 (07/05/2016)

New

  • [Windows Only] Added OCR Professional (OCR Pro) module. The module uses Kofax's OCR engine.
  • Added methods Addon.OCRPro.Download, Addon.OCRPro.Recognize, Addon.OCRPro.RecognizeFile, Addon.OCRPro.RecognizeRect, Addon.OCRPro.RecognizeSelectedImages and an OCRResult class to use the OCR Professional seamlessly with Dynamic Web TWAIN on the client-side.
  • Added a feature to Dynamsoft Service for it to accept an OCR Request, do OCR and return the OCR Result. With this feature, the OCR professional SDK can be deployed on the server-side.
  • The OCR Professional module supports multi-thread processing as well as zonal processing.
  • The OCR Professional module supports many more than 30 languages. See a full list ›
  • The OCR Professional module supports extracting text from the following file types: TIFF (G4 / LZW / JPEG), JPEG, PDF, BMP, JPEG2000, JBIG, JBIG2, PNG, PDA, PGX, XPS, WMP, OPG, MAX, AWD, DCX, PCX.
  • The OCR Professional module enables you to save OCR results in the following formats: Searchable PDFs (including PDF/A 1-b). Text over image technology supports multiple image compression formats to reduce the size of PDF files. Text files - TXT, CSV, XML, RTF. String variable.