Downloads and installs the OCRPro add-on (it's typically a zip file) on the local system.


.Addon.OCRPro.Download(remoteFile, optionalAsyncSuccessFunc, optionalAsyncFailureFunc);


<string> remoteFile: specifies the url path of the add-on. E.g. "".
<OnSuccess function> optional optionalAsyncSuccessFunc: callback function triggered when the file is downloaded successfully.
<OnFailure function> optional optionalAsyncFailureFunc: callback function triggered when the file failed to be downloaded.

Please refer to the function prototype OnSuccess or OnFailure.


The version number of the addon is defined in the addon JS file. As long as the defined version number is not the same as the local addon dll, the download method will auto get the dll from server deployed to local.