Selected text behaviours and annotated text sticked together

I have a PDF document: https://drive.google.com/file/d/1LtCTZJY8ftrrcvtIK0gtwe6UBV5bWx8i/view?usp=sharing
It can be opened and the text can be selected normally in a PDF viewer (Chrome for example)
However, when I selected the text, it behaved in an unexpected way—the text in a line is not all selected and started to jump to other lines. When I right-clicked and annotated, all the characters are sticked together and the words are not in the same order anymore.
Can anyone help me with this issue? Thanks a lot
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