v19.4.4

Updated third-party libraries to enhance security.

v19.4.3

• Updated third-party libraries to enhance security.
• Changed the compression format of the Linux .deb packages from zstd to xz for better compatibility with older Linux distributions (v19.4 started using zstd).
• Fixed an issue on Linux where the service started on every login, resulting in multiple running instances.

v19.4.2

• Updated third-party libraries to enhance security.
• Fixed an issue occurring when IfCheckDCP was enabled.
• Fixed an issue where OnPostLoad was not triggered when using LoadImageFromBase64Binary() and LoadImageFromBinary().

v19.4

New Features

• Added support for writing PDF as PDF/A-3b.
• Added maxThreads param for loadFromLocalStorage() and saveToLocalStorage() to improve performance.
• Added outputInfo for startScan().

Improvements

• Improved Dynamic Web TWAIN Service to make it compatible with the previous major version’s JavaScript.
• Packaged the macOS version of Dynamic Web TWAIN Service as a universal binary.
• Removed the major version restriction using annual full licenses.
• Added mechanism to infer ResourcePath from the script path when not specified.
• Improved the triggering of OnTopImageInTheViewChanged.
• Improved the error message if the JavaScript version does not match the service version.
• Improved the REST API:
  • Added service version info for GET /server/version.
  • Added PATCH /storage/documents/{documentuid} to modify document metadata.
  • Added GET /device/scanners/jobs/{jobuid}/content to retrieve page data concurrently.
• Added an error code for failure to load password-protected PDFs.
• Updated third-party libraries to enhance security.

Bug Fixes

Fixed loading of interlaced PNGs.
Fixed an issue where the HTTP form fields are lost using segmented upload with large files.

v19.3.3

• Updated third-party libraries to enhance security.
• Fixed a COMMONJS_VARIABLE_IN_ESM warning using Vite 8+.

v19.3.2

Updated third-party libraries to enhance security.

v19.3.1

• Improved the local network access check. Screenshots have been moved to a separate web page (which lists UI differences across browsers/versions) instead of being embedded directly in the dialogs.
• Updated third-party libraries to enhance security.
• Fixed an issue with local network request parameters that caused connection failures after installation (affecting only Safari 26.2+).

v19.3

New Features

• Added a new OCR add-on, which uses latest AI technology.
• Added support for writing PDF/A files.

Other Changes

• Added checking of the local network access permission introduced in Chrome 142.
• Added extra settings for PrintEx().
• Added prevention of service installation on macOS versions lower than 10.15.
• Added support for service installation for multiple users (Windows only).
• Added an EnableLocalNetworkMixedContent property.

Improvements

• Improved the performance of RemoveAllSelectedImages() by triggering OnBufferChanged and OnBitmapChanged events only once.
• Improved performance for the viewer loading documents with thousands of pages.
• Improved image clarity for the viewer.
• Updated third-party libraries to enhance security.

Bug Fixes

• Fixed a license issue of RemoteScan.
• Fixed the auto start of the service on Linux not using GUI.
• Fixed the areaIndex of rects returned in the pageAreaSelected event.

v19.2

Highlights

• Redesigned the service configuration page (guide).
  • Moved settings of host, firewall and Bonjour service to the new external access tab.
  • Added domain binding for the service.
  • For security reasons, the settings cannot be modified through the web page unless EnableWebSetup is set to true in DSConfiguration.ini (requires admin privileges).
• Improved the performance of the webcam add-on.

Other Changes

• Added back support for Remote Scan with the following methods renamed:
  • getDynamsoftService() -> getServices()
  • setDefaultDynamsoftService() -> setDefaultService()
  • getDefaultDynamsoftService() -> getDefaultService()
• Added support for IsBlankImageAsync() on Linux/Mac.
• Added requestFocusForScanningUI parameter for RESTful API.
• Added file name and type for drag-and-dropped files in the OnPostLoad event.
• Renamed disableFocusOutline to focusOutlineEnabled.
• Improved PDF image extraction to take the transformation info (mainly mirroring) into consideration.
• Opening links in the service installation dialog will no longer open a blank window.

Bug Fixes

• Fixed the spelling of ChangeContrastAsync().
• Fixed a bug where GetSelectedImagesSize() returned 0 for images imported from PDFs. This issue occurred when loading a PDF with preserveUnmodifiedOnSave enabled and executing SelectAllImages().

v19.1

New Features

Added a new method getVisiblePagesInfo() to return the information of visible pages in a viewer. It is useful to add custom elements.

Improvements

• Added support for reading special TIFFs (e.g. 4-bit RGB interleaved, old-style JPEG compression) on Windows.
• Added support for keeping the PDF forms when saving.
• Updated the way of checking CSS file integrity from fetching to examining the effectiveness of CSS rules.
• Updated the format of license expiry date to avoid misunderstanding.

Breaking Changes

Updated the names of headers for the REST API.

• X-DICS-LICENSE-KEY -> DWT-PRODUCT-KEY
• X-DICS-DOC-PASSWORD -> DWT-DOC-PASSWORD

Bug Fixes

• Fixed a bug that when preserveUnmodifiedOnSave is set to true, CopyToDocumentAsync() will fail.
• Fixed a bug that the width and height set in percentage using the Web TWAIN object is not effective after resizing.