Saving a PDF of your content is a feature only available on via Ingage for iPad, and cannot be completed on a desktop or laptop computer.
To print a PDF of your Ingage content:
Open Ingage on your iPad
Enter Edit Mode on the presentation you'd like to print
On the right side bar, tap the button reading Export PDF
iOS sharing options will pop up, allowing you to share the PDF via AirDrop, Messages, Email, and Print
A PDF of Ingage content will contain all of the pages in your presentation without Pop Ups, as well as additional versions of each page with each interactive feature activated so that you can see all your content.