OS: Android 8.0 – 9.0 (API level 21) Profit is free for non-commercial use of the SDK. Android SDK version 25 is required and can be downloaded from. To run sample project, run ./grade clean installation. To run sample app, run ./grade -P android:run=com.android.support:support-v4/run --activity=”Main activity” android:showDebug=”true” (the run flag should be changed to run the sample app) For information how to change the android:showDebug flag, refer to section 3.1 of the Getting Started with the Android Developer IDE. 3.1. The Sample Apps Example App 3.2. Setting up the SDK To use the PSPDFKit for Android, Android Studio 4.0.1 must be installed. You should install it after installing Android Studio. For the purposes of this Tutorial, we will use the Android Studio 4.0.1 Preview. To install Android Studio, click “Download”. Select any language from the drop-down. It will look something like this. Click “Download ZIP” button. A zip file will now be downloaded. Unzip it. Then open Android Studio. 3.3. Add SDK to the Project Click “Tools→Android→SDK Manager” and sign in. You will see the Android SDK Manager window. In the “Add a New entry…” window, click “New”. Name your SDK “Appending”. Click “Next”. Click “Finish”. For the purposes of this tutorial, we will be adding the following packages to the project: com.khan academy.pdeppdfkii:android-khanacademy-pdfkii:v2.7 com.khan academy.pdeppdfkii:android-khanacademy-pdeppdfkii-ui:v2.7 3.4. Installing the SDK Run the Application from the Android Studio. The SDK will now be installed. To run the demo app, run 3.5. Signing User-Controlled A security test to validate if the SDK is working correctly. This will use a user-defined key to access a specific service.