http://www.adobe.com/content/dam/Adobe/en/devnet/acrobat/pdfs/pdf_open_parameters.pdf
There are a set of open parameter specify how the viewer should open the pdf . Howe
Searching a solution for a problem very similar to yours, I found an interesting thread on forum.asp.net. http://forums.asp.net/t/1877403.aspx?Issue+with+embedded+pdf+object+in+chrome+browsers
At the end of the page, there is a workaround by a user working smoothly in Chrome. That seems to solve the problem.
Here it is an example:
<iframe src="/Downloads/MyPdfDocument.pdf#view=fitH" width="700" height="880"></iframe>
For users fighting with http://pdfobject.com/ -> "pdfobject.js" like me, you can change few lines of code on both minified and develop version of pdfobject.
Find:
c.innerHTML='<object data="'+a+'" type="application/pdf" width="'+i+'" height="'+z+'"></object>';return c.getElementsByTagName("object")[0];
and change with this line of code:
c.innerHTML='<iframe src="'+a+'" width="'+i+'" height="'+z+'"></iframe>';return c.getElementsByTagName("iframe")[0];
Hope this helps.