Looking for a way to capture page change via JavaScript

It is actually possible to do something like that using a script, but it's quite complicated and I don't think it's a good solution to limit the user like that.

Another option is to create a single page PDF that includes a single read-only button that's as large as the page. This button is used to display the page contents as the button's icon. The contents for each page can be stored in the PDF in hidden buttons or document-level icons. You'd have to use JavaScript to populate the button icon from these sources.

A potential downside is this is unlikely to work with any PDF viewer other than the desktop versions of Reader and Acrobat. This technique also has potential limitations and benefits with regard to printing.

A plug-in (C++) could, if not intercept the mouse and keyboard, notice a page change and navigate itself. It is awkward though and likely to have all sorts of unforeseen messy consequences. You probably need to think in terms of a dedicated app or viewer, not a general user tool for this.

You can't stop the user using mouse or keyboard.

Workarounds:

Use for every page  a separate file.

Or use template pages. You can spawn and delete this pages.