License initialization

Get a trial key

A time-limited public trial key is available for every new device for the first use of Dynamsoft Camera Enhancer. The public trial key is the default key used in samples. You can also find the public trial key on the following parts of this page.
If your free key is expired, please visit Private Trial License Page to get an extension.

Get a full license

Initialize the license

The following code snippets are using the public trial key to initialize the license. You can replace the public trial key with your own license key.

Include DynamsoftLicense library.
Add the following code:

Java(Android)
Objective-C
Swift

LicenseManager.initLicense("DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9", this, (isSuccess, error) -> {
    if (!isSuccess) {
        error.printStackTrace();
    }
});

@interface AppDelegate () <DSLicenseVerificationListener>
@end
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.
    [DSLicenseManager initLicense:@"DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9" verificationDelegate:self];
    return YES;
}
- (void)onLicenseVerified:(BOOL)isSuccess error:(nullable NSError *)error {
    if (!isSuccess && error != nil) {
        NSLog(@"error: %@", error);
    }
}

@main
class AppDelegate: UIResponder, UIApplicationDelegate, LicenseVerificationListener {
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.
        LicenseManager.initLicense("DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9", verificationDelegate: self)
        return true
    }
    func onLicenseVerified(_ isSuccess: Bool, error: Error?) {
        if !isSuccess {
            if let error = error {
                print("\(error.localizedDescription)")
            }
        }
    }
}