If you want to link to a certain page from your document, adjust the URL. This is the link generated by Google for a PDF file:
http://docs.google.com/viewer?url=http%3A%2F%2Finfolab.stanford.edu%2Fpub%2Fpapers%2Fgoogle.pdf
To load a specific page in the document, you need to add a hash to the end of the URL. Page IDs are numbered sequentially like this: :0.page.0, :0.page.1, :0.page.2...
So to load page #15 of the document, use this link:
http://docs.google.com/viewer?url=http%3A%2F%2Finfolab.stanford.edu%2Fpub%2Fpapers%2Fgoogle.pdf#:0.page.14
The same trick works for the embedded viewer:
http://docs.google.com/viewer?url=http%3A%2F%2Finfolab.stanford.edu%2Fpub%2Fpapers%2Fgoogle.pdf&embedded=true#:0.page.14
{ Thanks, Andy. }