click pdf link, how to make the pdf has been opened to jump to the number of pages, rather than another new pdf window.
Problem description
Click [[Ch1.pdf#page]], opened a pdf.
Click [[Ch1.pdf#page=10]], opens a new pdf file, and jumps to 10 pages.
Ideal situation
Click [[Ch1.pdf#page]], a pdf is opened.
Click [[Ch1.pdf#page=10]], already opened pdf, jump to 10 pages.