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How to use license key

Please follow the steps below to license Dynamsoft Barcode Reader:

  1. Get license key(s)

    For paid customers, you should get an email with the full license and the download link of the full version installer. If not, please contact sales[at]

    For trial users, you can get the trial licenses at the installation directory or MyTrialLicenses site.

    • For Windows Edition, the licenses can be found at /{INSTALLATION FOLDER}/LicenseManager.exe.
    • For JavaScript Edition, the license key can be found in the /{INSTALLATION FOLDER}/DBRResources\dynamsoft.barcodereader.config.js.
    • For Mac Edition, the licenses can be found at /{INSTALLATION FOLDER}/BarcodeReaderTrialLic.txt.
    • For Linux and Mobile Edition, please contact us at support[at] for license extension.
    NOTE: If the trial license expires or the license is missing, you can still get the barcode reading results but some part of the content will be replaced with "***".
  2. Change Source Code

    License the SDK through source code. If you have more than one license, please separate them via ';'




    CBarcodeReader reader;


    Dim oBarcodeReader As New BarcodeReader
    oBarcodeReader.InitLicense "88FFAA0******;9C42D5D******"


    BarcodeReader reader = new BarcodeReader();
    reader.LicenseKeys = "88FFAA0******;9C42D5D******";


    Dim reader As BarcodeReader = New Dynamsoft.Barcode.BarcodeReader()
    reader.LicenseKeys = "88FFAA0******;9C42D5D******"


    $br = new BarcodeReader();

    iOS SDK:

    BarcodeReader *br;
    br = [[BarcodeReader alloc] initWithLicense:@"0C85972******"];

    Android SDK:

    BarcodeReader mBarcodeReader;
    mBarcodeReader = new BarcodeReader("B8C43F6******");

    JavaScript SDK:

    // In the dynamsoft.barcodereader.js file
    dynamsoft.dbrEnv.productKey= 't0068NQ******';

Save and rebuild your application.

If you need any assistance or have any problem, please feel free to contact us.

Article Details

Last Updated
27th of August, 2015

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