What callback events are exposed?

Thanks for a great alternative to react-pdf-viewer. This was a lot easier to get up and running and is a lot cleaner.

I trawled the docs and didn't find any exposed events or callbacks. I'm specifically looking to get the current page in view or something like onPageChange like in react-pdf-viewer, as I use heatmap functionality to capture pdf read times and need to access what page the user is currently reading.

Also would like to set the start zoom level if possible.

Is this do-able?