Copy the License Key

Accurately obtaining the license key is crucial for applying the license.

1. In the email you received, locate the XML file containing the license key.
2. Open the XML file, and determine the license type based on the <type> field. If <type>online</type> is present, it indicates an online license. If <type>offline</type> is present or if the field is absent, it indicates an offline license.
3. Copy the value located at the LICENSE_KEY position within the <key>LICENSE_KEY</key> field. This is your license key.

Apply the License Key

Use sdk.licenseVerify() before initializing the SDK and starting conversions.

const sdk = require("./lib/index.js");

const license = "LICENSE_KEY";
const deviceId = "DEVICE_ID";
const appId = "com.example.application";

const code = sdk.licenseVerify(license, deviceId, appId);
if (code !== 0) {
  throw new Error(`license verification failed: ${code}`);
}

sdk.initialize();

You can also read license information from environment variables in command-line tools:

const license = process.env.COMPDFKIT_LICENSE;
const deviceId = process.env.COMPDFKIT_DEVICE_ID || "";
const appId = process.env.COMPDFKIT_APP_ID || "com.example.application";

The sample scripts also accept --license, --device-id, and --app-id. When these options are not provided, they read the same environment variables and fall back to local demo values packaged in the samples.