If you do not have the option to export your PDF as single-page and only have access to a version exported as spreads, iPaper provides a tool, that can split your PDF file into single pages.
The tool uses magic and mathematic calculations to split your PDF file down the middle :)
Click the link above and drag your file in to the dotted area or click Choose PDF.
DISCLAIMER: Please note that this will not work as intended on all PDF files, due to "Page Box" settings.
DISCLAIMER: Please note that the resulting split PDF file will not contain any hyperlinks, as they will be stripped in the process.