I use \phantomsection in my document, because I have nonnumbered chapters in Table of Contents:
\chapter*{Chapter title}
\phantomsection
\addcontentsline{toc}{chapter}{Chapter title}
Command \phantomsection works not correctly - jump properly to page, but the center of the page, not on top. View as a pdf is 'fit to horizontal' so I cannot see 'Chapter title' without scroll through the page. Command \chapter{} works fine.
\cleardoublepage\phantomsection\chapter*{Chapter Title}. If you use a KOMA class you can use\addchap– Marco Daniel May 19 '12 at 17:40