I know about zip space backups and the REST API. Here's my use case: I have a business team that has a bunch of PDFs in a carefully organized set of Windows folders. They are interested in migrating that content to Confluence, although most of it will remain in PDF form and not page form.
They've asked my whether, in the event that we stop using Confluence Cloud (not that likely), they will be able to get their documents back? My tools team isn't necessarily equipped to write custom code to restore things to a usable folder/file naming structure and I don't think that parsing XML to help map the attachment storage names to the "real" file names is acceptable to them.
Any advice?