PDF Import feature will be available in the coming versions of OpenOffice.org suite. Here’s some information from OpenOffice.org Wiki:
Whenever a PDF is selected in the Open dialog and the PDF is not a Hyprid PDF then the user has to choose in which application (Writer, Impress, Draw) the PDF shall be imported. This is done by a subsequent dialog that shows up after the Open dialog has been dismissed.
A screenshot presenting PDF Import Options Dialog is provided: