update to internal commit 91555422

DMGithubPublisher · DMGithubPublisher · commit ba9c3e748f30 · 2025-08-26T11:12:49.000+08:00
diff --git a/_articles/extended-usage/buffer-caching.md b/_articles/extended-usage/buffer-caching.md
@@ -48,10 +48,7 @@ var storageItemUid = await DWTObject.createLocalStorage(folderSettings);
 
 Please ensure to set a strong password to enhance data security, especially in multi-user login scenarios.
 
-The local directory of the created storage folder is under 
-  - Windows: `C:\Program Files (x86)\Dynamsoft\Dynamic Web TWAIN Service {versionnumber}\storage`(version 18.5.1 and earlier `C:\Windows\SysWOW64\Dynamsoft\DynamsoftServicex64_{versionnumber}\storage`)
-  - macOS: `Go > Applications > Dynamsoft > Dynamic Web TWAIN Service {versionnumber} > storage`(version 18.5.1 and earlier `Go > Applications > Dynamsoft > DynamsoftServicex64_{versionnumber} > {installed version No.} > storage`)
-  - Linux: `/opt/dynamsoft/Dynamic Web TWAIN Service {versionnumber}/storage`(version 18.5.1 and earlier `/opt/dynamsoft/DynamsoftService/storage`)
+The local directory of the created storage folder is under the service's [intallation folder](/_articles/extended-usage/dynamsoft-service-configuration.md#installation-folder).
 
 **Save image caches**
 
diff --git a/_articles/extended-usage/dynamsoft-service-configuration.md b/_articles/extended-usage/dynamsoft-service-configuration.md
@@ -120,7 +120,7 @@ Screenshots:
 
    ![external access setup](/assets/imgs/service-web-setup/external-access-setup.jpg)
 
-On the left of the page, you can check the service's status and update the [`LogLevel`](/_articles/info/api/WebTwain_Util.md#loglevel)。
+On the left of the page, you can check the service's status and update the [`LogLevel`](/_articles/info/api/WebTwain_Util.md#loglevel).
 
 On the right of the page, you can configure the service through the local access tab and the external access tab.
 
diff --git a/_articles/faq/dwt-with-annotation.md b/_articles/faq/dwt-with-annotation.md
@@ -34,7 +34,7 @@ Deliver the SDK dependencies with either the [jsDelivr](https://jsdelivr.com/) o
 
   ```html
     <!--Dynamic Web TWAIN-->
-    <script src="https://cdn.jsdelivr.net/npm/dwt@19.1.0/dist/dynamsoft.webtwain.min.js"></script>
+    <script src="https://cdn.jsdelivr.net/npm/dwt@19.2.0/dist/dynamsoft.webtwain.min.js"></script>
     <!--Dynamsoft Document Viewer-->
     <script src="https://cdn.jsdelivr.net/npm/dynamsoft-document-viewer@3.0.0/dist/ddv.js"></script>
     <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/dynamsoft-document-viewer@3.0.0/dist/ddv.css">
@@ -44,7 +44,7 @@ Deliver the SDK dependencies with either the [jsDelivr](https://jsdelivr.com/) o
 
   ```html
     <!--Dynamic Web TWAIN-->
-    <script src="https://unpkg.com/dwt@19.1.0/dist/dynamsoft.webtwain.min.js"></script>
+    <script src="https://unpkg.com/dwt@19.2.0/dist/dynamsoft.webtwain.min.js"></script>
     <!--Dynamsoft Document Viewer-->
     <script src="https://unpkg.com/dynamsoft-document-viewer@3.0.0/dist/ddv.js"></script>
     <link rel="stylesheet" href="https://unpkg.com/dynamsoft-document-viewer@3.0.0/dist/ddv.css">
@@ -120,7 +120,7 @@ API Reference
 // You can request a 30-day trial key from https://www.dynamsoft.com/customer/license/trialLicense/?product=dwtddv
 Dynamsoft.DWT.ProductKey = "DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9";
 Dynamsoft.DWT.UseDefaultViewer = false;
-Dynamsoft.DWT.ResourcesPath = "https://cdn.jsdelivr.net/npm/dwt@19.1.0/dist";
+Dynamsoft.DWT.ResourcesPath = "https://cdn.jsdelivr.net/npm/dwt@19.2.0/dist";
 // You need to set the service installer location here since the installer's size exceeds jsdelivr's limit. You'd better host the installers in your own environment.
 Dynamsoft.DWT.ServiceInstallerLocation = 'https://download2.dynamsoft.com/Demo/DWT/Resources/dist/';
 
@@ -279,7 +279,7 @@ API Reference
 <html>
 <head>
     <title>HelloWorld</title>
-    <script src=" https://cdn.jsdelivr.net/npm/dwt@19.1.0/dist/dynamsoft.webtwain.min.js"></script>
+    <script src=" https://cdn.jsdelivr.net/npm/dwt@19.2.0/dist/dynamsoft.webtwain.min.js"></script>
     <script src="https://cdn.jsdelivr.net/npm/dynamsoft-document-viewer@3.0.0/dist/ddv.js"></script>
     <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/dynamsoft-document-viewer@3.0.0/dist/ddv.css">
 </head>
@@ -316,7 +316,7 @@ let DWObject, editViewer, ddvDoc;
     // Create Dynamic Web TWAIN object
     Dynamsoft.DWT.ProductKey = license;
     Dynamsoft.DWT.UseDefaultViewer = false;
-    Dynamsoft.DWT.ResourcesPath = "https://cdn.jsdelivr.net/npm/dwt@19.1.0/dist";
+    Dynamsoft.DWT.ResourcesPath = "https://cdn.jsdelivr.net/npm/dwt@19.2.0/dist";
     // You need to set the service installer location here since the installer's size exceeds jsdelivr's limit. You'd better host the installers in your own environment.
     Dynamsoft.DWT.ServiceInstallerLocation = 'https://download2.dynamsoft.com/Demo/DWT/Resources/dist/';
 
diff --git a/_articles/general-usage/resource-loading.md b/_articles/general-usage/resource-loading.md
@@ -21,7 +21,7 @@ The official SDK installers store the installers under the `/dist` directory, an
 
 The official [DWT installer](https://www.dynamsoft.com/web-twain/downloads) installs the SDK with a 30-day free trial (license key included), and contains the resource scripts, along with SDK documentation, and samples. This method is useful for developers to quickly evaluate the SDK. The resource files may be obtained from the following locations after installation:
 
-- On Windows: `C:\Program Files (x86)\Dynamsoft\Dynamic WebTWAIN SDK {version number}/Resources`
+- On Windows: `C:\Program Files (x86)\Dynamsoft\Dynamic WebTWAIN SDK {version number}\Resources`
 - On Linux: Where you extracted the SDK archive file to - `{extracted directory}/Dynamic Web TWAIN SDK {version number}/Resources`
 - On MacOS: `/Applications/Dynamsoft/Dynamic Web TWAIN SDK {version number}/Resources`
 
@@ -95,6 +95,7 @@ Note that jsDelivr currently has problems delivering the Dynamic Web TWAIN Servi
         <script>
             Dynamsoft.DWT.ResourcesPath = "https://cdn.jsdelivr.net/npm/dwt@latest/dist"; // Load supporting resources from here
             Dynamsoft.DWT.ProductKey = ""; // Add product key here
+            Dynamsoft.DWT.ServiceInstallerLocation = 'https://unpkg.com/dwt/dist/dist/'; // Set the service installers' location
         </script>
     </body>
 </html>
diff --git a/_articles/indepth/development/angular.md b/_articles/indepth/development/angular.md
@@ -28,7 +28,7 @@ ng new dwt-angular
 ### **cd** to the root directory of the application and install the dependencies
 
 ``` cmd
-npm install dwt@19.1.0
+npm install dwt@19.2.0
 ```
 
 ## Configure the project
diff --git a/_articles/indepth/development/react.md b/_articles/indepth/development/react.md
@@ -40,7 +40,7 @@ npm install
 ```
 
 ``` cmd
-npm install dwt@19.1.0 ncp
+npm install dwt@19.2.0 ncp
 ```
 
 > `ncp` is used to copy static resources files.
diff --git a/_articles/indepth/development/vue.md b/_articles/indepth/development/vue.md
@@ -33,7 +33,7 @@ vue create dwt-vue
 ### Navigate to the root directory of the application and install the `dwt` and `ncp` package
 
 ``` cmd
-yarn add dwt@19.1.0
+yarn add dwt@19.2.0
 ```
 
 ``` cmd
@@ -232,7 +232,7 @@ npm install
 ```
 
 ``` cmd
-npm install dwt@19.1.0
+npm install dwt@19.2.0
 ```
 
 ``` cmd
diff --git a/_articles/info/api/Addon_Webcam.md b/_articles/info/api/Addon_Webcam.md
@@ -13,12 +13,12 @@ description: Dynamic Web TWAIN SDK Documentation API Reference Webcam Addon APIs
 
 **Methods**
 
-| [`CaptureImage()`](#captureimage)                                               | [`OpenSource()`](#opensource)                           | [`CloseSource()`](#closesource)                                 | [`GetCameraControlPropertySetting()`](#getcameracontrolpropertysetting) |
-| [`GetCameraControlPropertyMoreSetting()`](#getcameracontrolpropertymoresetting) | [`GetVideoPropertySetting()`](#getvideopropertysetting) | [`GetVideoPropertyMoreSetting()`](#getvideopropertymoresetting) | [`SetCameraControlPropertySetting()`](#setcameracontrolpropertysetting) |
-| [`SetVideoPropertySetting()`](#setvideopropertysetting)                         | [`GetFrameRate()`](#getframerate)                       | [`SetFrameRate()`](#setframerate)                               | [`GetMediaType()`](#getmediatype)                                       |
-| [`SetMediaType()`](#setmediatype)                                               | [`GetResolution()`](#getresolution)                     | [`SetResolution()`](#setresolution)                             | [`GetFramePartURL()`](#getframeparturl)                                 |
-| [`GetFrameURL()`](#getframeurl)                                                 | [`GetSourceList()`](#getsourcelist)                     | [`SelectSource()`](#selectsource)                               | [`PauseVideo()`](#pausevideo)                                           |
-| [`PlayVideo()`](#playvideo)                                                     | [`SetVideoRotateMode()`](#setvideorotatemode)           | [`StopVideo()`](#stopvideo)                                     |                                                                         |
+| [`CaptureImage()`](#captureimage) | [`CloseSource()`](#closesource) | [`GetCameraControlPropertySetting()`](#getcameracontrolpropertysetting) | [`GetCameraControlPropertyMoreSetting()`](#getcameracontrolpropertymoresetting) |
+| [`GetVideoPropertySetting()`](#getvideopropertysetting) | [`GetVideoPropertyMoreSetting()`](#getvideopropertymoresetting) | [`SetCameraControlPropertySetting()`](#setcameracontrolpropertysetting) | [`SetVideoPropertySetting()`](#setvideopropertysetting) |
+| [`GetFrameRate()`](#getframerate) | [`SetFrameRate()`](#setframerate) | [`GetMediaType()`](#getmediatype) | [`SetMediaType()`](#setmediatype) |
+| [`GetResolution()`](#getresolution) | [`SetResolution()`](#setresolution) | [`GetFramePartURL()`](#getframeparturl) | [`GetFrameURL()`](#getframeurl) |
+| [`GetSourceList()`](#getsourcelist) | [`SelectSource()`](#selectsource) | [`PauseVideo()`](#pausevideo) | [`PlayVideo()`](#playvideo) |
+| [`SetVideoRotateMode()`](#setvideorotatemode) | [`StopVideo()`](#stopvideo) |  |  |
 
 ## CaptureImage()
 
diff --git a/_articles/info/api/WebTwain_IO.md b/_articles/info/api/WebTwain_IO.md
@@ -3554,7 +3554,7 @@ ShowFileDialog(
 
 `allowMultiSelect`: Whether or not multiple files can be selected at the same time. Only valid in an open-file dialog.
 
-`showOverwritePrompt`: Whether to display a prompt if saving a file which would overwrite an existing file.
+`showOverwritePrompt`: Whether to display a prompt if saving a file which would overwrite an existing file (only valid for Windows).
 
 `flag`: If set to 0, `allowMultiSelect` and `showOverwritePrompt` take effect. Otherwise, ignore those two parameters.
 
@@ -3749,10 +3749,7 @@ A Promise object which will be resolved with the uid string which will be used a
 **Usage notes**
 
 - If `password` is not specified, the returned `uid` string will be set as the password of the storage folder.
-- The local directory of the created storage folder is under
-    - Windows: `C:\Program Files (x86)\Dynamsoft\Dynamic Web TWAIN Service {versionnumber}\storage`(version 18.5.1 and earlier `C:\Windows\SysWOW64\Dynamsoft\DynamsoftServicex64_{versionnumber}\storage`)
-    - macOS: `Go > Applications > Dynamsoft > Dynamic Web TWAIN Service {versionnumber} > storage`(version 18.5.1 and earlier `Go > Applications > Dynamsoft > DynamsoftServicex64_{versionnumber} > {installed version No.} > storage`)
-    - Linux: `/opt/dynamsoft/Dynamic Web TWAIN Service {versionnumber}/storage`(version 18.5.1 and earlier `/opt/dynamsoft/DynamsoftService/storage`)
+- The local directory of the created storage folder is under the service's [installation folder](/_articles/extended-usage/dynamsoft-service-configuration.md#installation-folder).
 - The creation will not be successful, if the remaining disk space is less than
 
     | System      | Remaining Disk Space |
diff --git a/_articles/info/api/WebTwain_Util.md b/_articles/info/api/WebTwain_Util.md
@@ -340,11 +340,7 @@ LogLevel: number;
 
 **Usage notes**
 
-The logs for the Dynamic Web TWAIN library are saved in the directory:
-
-- Windows `C:\Program Files (x86)\Dynamsoft\Dynamic Web TWAIN Service {versionnumber}\log`(version 18.5.1 and earlier `C:\Windows\SysWOW64\Dynamsoft\DynamsoftServicex64_{versionnumber}\log`) or `C:\Users\{UserName}\AppData\Roaming\Dynamsoft\Dynamic Web TWAIN Service\log`(version 18.5.1 and earlier `C:\Users\{UserName}\AppData\Roaming\Dynamsoft\DynamsoftService\log`)
-- macOS, `Go > Applications > Dynamsoft > Dynamic Web TWAIN Service {versionnumber} > log`(version 18.5.1 and earlier `Go > Applications > Dynamsoft > DynamsoftServicex64_{versionnumber} > {installed version No.} > log`)
-- Linux: `/opt/dynamsoft/Dynamic Web TWAIN Service {versionnumber}/log`(version 18.5.1 and earlier `/opt/dynamsoft/DynamsoftService/log`)
+The logs for the Dynamic Web TWAIN library are saved in the `log` folder under its [installation folder](/_articles/extended-usage/dynamsoft-service-configuration.md#installation-folder).
 
 By default, `LogLevel` is 0 and nothing is recorded. When it is set to 1, all debugging information is recorded. This setting in your application will apply to all machines. Please set it back to 0 if you don't need to record log as it will slow down the speed.
 
diff --git a/_articles/info/api/index.md b/_articles/info/api/index.md
@@ -137,7 +137,7 @@ breadcrumbText: API Reference
 | [`Rotate()`](/_articles/info/api/WebTwain_Edit.md#rotate)                           | [`RotateEx()`](/_articles/info/api/WebTwain_Edit.md#rotateex)               | [`RotateLeft()`](/_articles/info/api/WebTwain_Edit.md#rotateleft)                   | [`RotateRight()`](/_articles/info/api/WebTwain_Edit.md#rotateright)                     |
 | [`ChangeBitDepth()`](/_articles/info/api/WebTwain_Edit.md#changebitdepth)           | [`SetDPI()`](/_articles/info/api/WebTwain_Edit.md#setdpi)                   | [`ConvertToBW()`](/_articles/info/api/WebTwain_Edit.md#converttobw)                 | [`ConvertToGrayScale()`](/_articles/info/api/WebTwain_Edit.md#converttograyscale)       |
 | [`ChangeImageSize()`](/_articles/info/api/WebTwain_Edit.md#changeimagesize)         | [`Invert()`](/_articles/info/api/WebTwain_Edit.md#invert)                   | [`SetImageWidth()`](/_articles/info/api/WebTwain_Edit.md#setimagewidth)             | [`ChangeBrightnessAsync()`](/_articles/info/api/WebTwain_Edit.md#changebrightnessasync) |
-| [`ChangeContrastAsnyc()`](/_articles/info/api/WebTwain_Edit.md#changecontrastasnyc) |
+| [`ChangeContrastAsync()`](/_articles/info/api/WebTwain_Edit.md#changecontrastasync) |
 
 <!--
 * [`Crop()`](/_articles/info/api/WebTwain_Edit.md#crop)
diff --git a/_articles/info/schedule/Addon.md b/_articles/info/schedule/Addon.md
@@ -284,6 +284,10 @@ Check out the release notes of Dynamsoft Barcode Reader: [9.6.40](https://www.dy
 
 ## Desktop Webcam Capture
 
+### `19.2.0` (08/26/2025)
+
+Improved the performance by using persistent HTTP connection.
+
 ### `15.0` (06/27/2019)
 
 #### IMPROVED
diff --git a/_articles/info/schedule/Stable.md b/_articles/info/schedule/Stable.md
@@ -10,11 +10,11 @@ description: Dynamic Web TWAIN SDK Documentation Schedule Stable Release Page
 
 # Stable Releases
 
-## 19.2 (08/19/2025) 
+## 19.2 (08/26/2025) 
 
 ### Highlights
  
-* Redesigned the service configuration page.
+* Redesigned the service configuration page ([guide](/_articles/extended-usage/dynamsoft-service-configuration.md#web-setup)).
    * 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).
@@ -23,15 +23,20 @@ description: Dynamic Web TWAIN SDK Documentation Schedule Stable Release Page
 ### Other Changes
  
 * Added back support for [Remote Scan](https://www.dynamsoft.com/remote-scan/docs/introduction/) with the following methods renamed:
-   * `getDynamsoftService` -> `getServices`
-   * `setDefaultDynamsoftService` -> `setDefaultService`
-   * `getDefaultDynamsoftService` -> `getDefaultService`
+   * `getDynamsoftService()` -> `getServices()`
+   * `setDefaultDynamsoftService()` -> `setDefaultService()`
+   * `getDefaultDynamsoftService()` -> `getDefaultService()`
 * Added support for [`IsBlankImageAsync()`](/_articles/info/api/WebTwain_Buffer.md#isblankimageasync) on Linux/Mac.
-* Added RESTful-only license.
-* Added `requestFocusForScanningUI` parameter for RESTful API.
+* Added [`requestFocusForScanningUI`](/_articles/info/api/restful.md#:~:text=requestFocusForScanningUI){:target="_blank"} parameter for RESTful API.
 * Added file name and type for drag-and-dropped files in the [`OnPostLoad`](/_articles/info/api/WebTwain_IO.md#onpostload) event.
-* Fixed the spelling of [`ChangeContrastAsync()`](/_articles/info/api/WebTwain_Edit.md#changecontrastasync).
 * Renamed `disableFocusOutline` to [`focusOutlineEnabled`](/_articles/info/api/WebTwain_Viewer.md#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()`](/_articles/info/api/WebTwain_Edit.md#changecontrastasync).
+* Fixed a bug where [`GetSelectedImagesSize()`](/_articles/info/api/WebTwain_Buffer.md#getselectedimagessize) returned 0 for images imported from PDFs. This issue occurred when loading a PDF with [`preserveUnmodifiedOnSave`](/_articles/info/api/interfaces.md#:~:text=preserveUnmodifiedOnSave){:target="_blank"} enabled and executing [`SelectAllImages()`](/_articles/info/api/WebTwain_Buffer.md#selectallimages).
 
 ## 19.1 (05/07/2025) 
 
@@ -64,7 +69,7 @@ Updated the names of headers for the REST API.
 
 - **Greatly expanded support for the [RESTful Dynamic Web TWAIN Service](/_articles/extended-usage/restful-api.md).**
 - **PDF Handling**:
-  - Added new PDF Rasterizer Add-On API [`preserveUnmodifiedOnSave`](/_articles/info/api/interfaces.md#readeroptions) to preserve the size of unmodified PDF pages when saving.
+  - Added new PDF Rasterizer Add-On API [`preserveUnmodifiedOnSave`](/_articles/info/api/interfaces.md#:~:text=preserveUnmodifiedOnSave){:target="_blank"} to preserve the size of unmodified PDF pages when saving.
   - Added new PDF Rasterizer Add-On API [`IsRasterizationRequired()`](/_articles/info/api/Addon_PDF.md#israsterizationrequired). This API returns true if the PDF file contains content other than one image per page. Please note that while invoking this API does not require a license for the PDF Rasterizer Add-On, a license is required to perform actual rasterization of the PDF for viewing purposes.
 - **Cross-platform support**: Added macOS and Linux platform support for DWT Barcode Reader Add-On.
 - **Error messages**: Added more informative error messages with the new [`ErrorCause`](/_articles/info/api/WebTwain_Util.md#errorcause) API.
diff --git a/_articles/introduction/system-requirements.md b/_articles/introduction/system-requirements.md
@@ -12,7 +12,11 @@ description: Dynamic Web TWAIN SDK Documentation Platform Page
 
 ## Supported Systems and Browsers
 
-Dynamic Web TWAIN is designed to be cross-platform, thus, it works in all major browsers across all major operating systems, including Windows, macOS, Linux. 
+Dynamic Web TWAIN is designed to be cross-platform, thus, it works in all major browsers across all major operating systems:
+
+* Windows: Windows 7 or later
+* macOS: macOS 10.15 or later
+* Linux: Ubuntu, Debian, Fedora, Linux on ChromeOS ([guide](https://www.dynamsoft.com/codepool/chrome-os-web-document-scanning.html)), etc
 
 [See the list of supported systems and browsers >](https://www.dynamsoft.com/web-twain/features/)
 
