Go to the First Page
Function: boolean GotoFirstPage ();
Description: Goes to first page of the PDF document.

Go to the Previous Page
Function: boolean GotoPreviousPage ();
Description: Goes to previous page of the PDF document.

Go to the Next Page
Function: boolean GotoNextPage();
Description: Goes to next page of the PDF document.

Go to the last Page
Function: boolean GotoLastPage();
Description: Goes to last page of the PDF document.