The question is too broad as it is - not sure what you mean by "mark" - do you mean the selection in some way or actually selected?
In any case, firstly, to go to the correct page - you can use the fragment identifiers in hyperlinks to link to a specific page in PDF format using the page parameter. eg.
<a href="file.pdf#page=1">page 1</a> <a href="file.pdf#page=2">page 2</a>
If you want to highlight a specific section of a page using a hyperlink, you can use the highlight parameter, note that you must also specify the page to use the highlight parameter. eg.
<a href="file.pdf#page=1&highlight=10,10,50,50">page 1 - highlight</a>
The values ββof the rectangle are integers in the coordinate system, where 0,0 represents the top left, and the values ββare specified in the order lt, rt, top, btm.
You can also open the PDF file in the "Named destination", that is, the named section in the document using the nameddest parameter. eg.
<a href="file.pdf#nameddest=mysection">my section</a>
This is great because it doesn't matter if the pages are inserted, deleted, etc., since the section will always be correctly linked.
You can read Named Destinations here , as well as various Options for opening PDF files