There are version of the Confluence documentation available to download, but I'm afraid it's only the Server version.
You'll find there here: https://confluence.atlassian.com/display/ALLDOC/Confluence+Documentation+Directory
If I may ask, what would you like to export the documentation for? For what purpose?
I'm a tech writer at Atlassian, and I'm curious to know why because we're always discussing about if our users actually want to download PDFs of our documentation, especially for Cloud customers.
Your answer will help us help you better. Thanks for asking!
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