How to obtain a license
You are supposed to register at fastpdfkit.com and use PayPal to pay for the license, AmEx or perform a bank transfer If you send us a payment receipt we will activate the license immediately.
In few hours we will update the github repository with and activated library for your app's bundle-id (like com.company.application).
Then you just need to pull and grab the updated libFastPdfKit.a
file and overwrite the old one on your project.
Remember to empty the trash and perform a clean all from Xcode.
Then you can safely build the activated app.