I was allways wondering How to get reference to AcrobatReader  object and after all to the PDF file embeded in IE. Today I was here: http://www.vitoplantamura.com/index.aspx?page=axvncviewer   there is such a interesting html:   When I analyze this then I start to wonder about this line:   EDIT: above fraction was only an introduction, describing where it came my question.   And now then the question arise : How I can use document.all to get the refrence to specified AxObject in this Case I mean