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SDK license requirements

The table shows which SDKs are free to use and those which need a license.  

SDK CategorySDKExamplesLicense Required ?
Wacom Device KitThese SDKs are free of charge and do not need a license:

 Wintab/Low Level APIs

WacomTablet_6.3.22-6.exe No

 Bluetooth Stylus.

Bluetooth_Stylus_SDK_2.1.5-1.zip No


STU-SDK-Windows-2.13.5.zip No
WILL SDK FamilyWith the exception of WILL for Ink, these SDKs require a license:

 WILL SDK for inkWILL_SDK_Android_1.8.4.zip  No 

 WILL SDK for devicesCDL-Android-1.0.4.zip Yes

 WILL SDK for signatureSignature-SDK-Android-2.1.zip Yes

 WILL SDK for documentsWILL-SDK-Documents-iOS-1.2.0.zip Yes

Types of license and how to get one

From a commercial point of view there are different types of license available and you will need to select one to suit your needs.

License Management System

At this time, production licenses must be requested from your regional Wacom Sales representative. If you do not have contact with a Wacom Sales Representative, please inform us here: Select Contact Sales in https://developer.wacom.com

We are currently developing the License Management System (LMS) for a quick and smooth self-service facility to create and renew licenses. The facility is now available for evaluation licenses and production licenses will be added in due course.  

License Types

License typeDescription


The licenses are fully functional but expire 3 months after their creation date. An evaluation license can be renewed when required.

Evaluation licenses are generated on a self-service basis at no cost using the LMS on https://developer.wacom.com 

Having created a license it can be downloaded and installed in an application.

Automated Commercial Production

Commercial production licenses are based on a monthly or annual subscription charge.

Current Process:

Contact your regional Wacom Sales representative to purchase a license which will be supplied by email. If you do not have contact with a Wacom Sales Representative, please inform us here: Select Contact Sales in https://developer.wacom.com

When the LMS is available:

Commercial production licenses are generated on a self-service basis using the LMS on https://developer.wacom.com

The website uses the Wacom Marketplace to manage the purchase of SDK subscriptions.

Having purchased a subscription a license can then be generated and downloaded from https://developer.wacom.com

The license expiry date will be one year from its creation, or the expiry date of the subscription whichever is sooner.

Enterprise Commercial Production

If you are purchasing an Enterprise Edition through your Wacom Sales representative, production license creation is taken care of by the Wacom Enterprise Sales team on your behalf, setting an agreed expiry date.

Current Process:

Licenses will be supplied by email. If you do not have contact with a Wacom Sales Representative, please inform us here: Select Contact Sales in https://developer.wacom.com

When the LMS is available:

Upon signing a contract, Enterprise licenses can then be downloaded from https://developer.wacom.com

Using the License Management System - LMS

This is currently restricted to the management of evaluation licenses:

  • Open the Developer Dashboard: https://developer.wacom.com/developer-dashboard To open the page you will need to login with your Wacom ID
  • Select Licences to display the Manage License Keys page
  • Click New Evaluation License:

  • You can now select Generate License for the required product:

    A message box indicates that a license has been created:

  • Select Licences to return to the Manage License Keys page. License keys are now available for download:

  • Click the Download icon to download the license. The license will be saved to a file named 'license.txt' by default.
  • At any time you can click the link to 'Renew License' then download a new license with a revised expiry date:

General License Information

Evaluation Licenses

The licenses are fully functional but expire 3 months after their creation date. An evaluation license can be renewed when required. In the case of the Signature SDK a signature captured using an evaluation license will be displayed with an 'Evaluation' watermark:

License format

Licences are generated in the JSON Web Token (JWT) format and are downloaded to a file such as 'License.lic'.

The JWT license contains three sections: Header.Payload.VerifySignature

See https://jwt.io/introduction/ for further details of the JWT format.

The payload section of the license contains field values including:

  • license type - evaluation / commercial / enterprise
  • expiry date
  • App ID
  • SDK supported features

The license is supplied as a text string similar to this example:

JWT Licence example

A JWT viewer can be used to display the contents of a license string, for example:

JWT example expanded
  "iss": "461c26c04e0d4b4289523b470d6b52a1",
  "exp": 1564531200,
  "iat": 1534514357,
  "rights": [
  "devices": [],
  "type": "production",
  "lic_name": "enterpriseGenerated",
  "wacom_id": "bc5c1c740c594c6ea9c6e414fbe2edb2",
  "lic_uid": "435dc411-f08f-4b81-9ac6-779c8d1569a7",
  "apps_windows": [
  "apps_ios": [],
  "apps_android": [],
  "machine_ids": []

As you might expect, the license contents can be viewed but not changed since the data is digitally signed.


Most licenses require an Application ID (App ID) and this will be required when generating a license on the LMS or when requesting a license from Wacom Sales.

An APP ID is used to publish an application online (e.g. Apple Store or Google Play).

The same ID is used to generate an application license. An example could be:


An App ID is not required for an evaluation license.

To locate the App Id in an application's source code:


App ID Info

Windows ClassicApplication IDs do not exist in this platform, so there are no checks even for Production
Windows UWPApplication IDs should match the Windows.ApplicationModel.Package.Current.Id.Name

Application IDs should match ‘Bundle Identifier’, e.g. displayed under: Xcode->Project->General->Identity

AndroidApplication IDs should match the android.defaultConfig.applicationId, found in the build.gradle file.

License Installation

The method of license installation is application dependent.

Typically the license string will be copied into the application code, for example:

try {
     InputStream license = assetManager.open("license.lic");
     LicenseBootstrap.initLicense(this.getApplicationContext(), LicenseBootstrap.readFully(license));

To ease license management we recommend that the license is set dynamically and is not hardcoded in the application. 

License Expiry

A license becomes invalid when it expires for one of the reasons:

  • evaluation expiry date exceeded
  • licence expiry date exceeded

When a license expires the related SDK functions cease to operate and instead return a license error code. The error condition must be handled by the application.

An exception to this rule is the WILL SDK for signature:

  • Expired production license: when the license has expired the SDK remains fully functional but signatures will be displayed with an 'Evaluation' watermark.
  • Expired evaluation license: when the license has expired signature capture will return an error.

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