New answers tagged iframe
You have to edit the page in SharePoint designer and the following tag <WebPartPages:AllowFraming runat="server" /> When building your iFrame use the &IsDlg=1 or &isdlg=1 query string parameter as well to hide the SharePoint Chrome. Note IsDlg = 1 (Hides chrome and wont' display scrollbars for content) isdlg = 1 (shows scrollbars)
This is what I've used before to display pdf's and it has never asked me to download in Chrome or IE.(I answered with this on a different question so you know) I have personally used the Content Editor Web Part (Located under Media and Content) to display various documents within the page (no need to have the page be opened on an entirely different page) ...
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