PDF Opens at Page 2

This is not something that FancyBox does. It’s the browser that decides which plugin to use to displays PDF content and then it’s the plugin that decides how it is displayed… You might be able to control the browser plugin by adding parameters to the URL but you cannot control which plugin is used.

Try adding ?page=1 to the link URL.

Other parameter can be found here: http://partners.adobe.com/public/developer/en/acrobat/PDFOpenParameters.pdf