Animations in ng-pdf-viewer

I am able to successfully use this library to display PDFs in my ionic app using this lib.

Now, I would like to add some animations when the page changes. I am totally new to Ionic, can I get a starting point for this?

PS: I already browsed a few articles about how to add animations in angular 4, but I’m unable to figure out how to add those animations pdf-viewer.

Any help will be appreciated, thanks.