I have the following html in a placeholder. In Firefox and in Chrome this works correctly; the pdf is properly constrained within the placeholder, scroll bars appearing when necessary. But in IE the placeholder seems to be ignored. The PDF simply displays in a big screen the size of the monitor as it would, I guess, if you just brought it up in Adobe Reader. Perhaps someone else has run into this, or can at least suggest a fix.

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<iframe name=myframe src=index_htm_files/releases.pdf#navpanes=0 width=100% height=100% frameborder=0 scrolling=auto marginheight=0 marginwidth=0><iframe>