Adding PDFTron license key

A demo license key or a commercial license key is required to proceed. If you have not yet received a license key, please first obtain a license key here before reading this documentation.

It is important that you initialize PDFTron library with a valid license key before using any PDFTron classes.

Please be sure to initialize PDFTron SDK before any calls to PDFTron APIs.

After this.InitializeComponent() of App.xaml.cs in your application, add: