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I am able to export an individual confluence space to PDF but would love to export the entire confluence site as a form of hard back up for emergancies.
Is there a way to export the entire site?
You can not export the entire site into PDF but there is a backup option to XML which you can later use to restore in case of emergencies. See http://confluence.atlassian.com/display/DOC/Site+Backup+and+Restore for details.
You could take a look at Scroll Wiki Exporter.