TOPIC:

how I can block the current page that the user is reading, I want to freeze the page and prevent the user from changing the page when scrolling vertically or horizontally.

many thanks

when you set this status, don't call PDFView.viewTouch in PDFReader.onTouchEvent

but the problem is I want the user to highlight the text, so I still need to send touch events

I know, you don't call PDFView.viewTouch just when you has some text selecting operations.
otherwise, call PDFView.viewTouch.
use a boolean value to control status.

I tried it, the highlight didn't work since all touch events arent send to the PDFView class

see readme.pdf in demo project("doc" subdir)
i think this will help you.