How to open Mac documents .page, on LibreOffice

Solution 1:

If you don't have access to an Apple operating system, use Apple's no-cost 'in-browser' version of Pages to export it in a format that you can open with LibreOffice. Unfortunately, Pages doesn't have OpenDocument (ODT) export, (as of 2015), but it does have DOCX (Microsoft Word) and PDF (Portable Document Format) exports.

1. With a recent version of Firefox, or Chrome, visit Apple's iCloud website: https://www.icloud.com .
2. If you don't have an Apple ID, register for one at no cost.
3. Log in with an Apple ID.
4. Open Pages. https://www.icloud.com/#pages
5. The site asks you to upgrade to a supported browser to use all the features. Unfortunately, no Linux browsers are supported (as of 2015) so ignore this message: export still works. (It also may ask you to upgrade to iCloud Drive. I am not sure what this means, but you probably need to accept this to be able to open Pages.)
6. Drag your Pages document onto your browser. It shows you an editable version of your document in a kind of file manager view
7. Double-click the icon for your uploaded document.
8. In a new browser tab, it shows you a word processor interface to your document.
9. Select the tools menu (a spanner/wrench icon in the top right of the screen).
10. Choose 'Download a Copy'.
11. Export as PDF or as Microsoft Word (.DOCX).
12. With LibreOffice, navigate to your downloads folder and open the document.

I tried with a short sample Pages document and LibreOffice 4.4. I found that DOCX format gave a more faithful copy than PDF.

Reference: https://help.apple.com/icloud/#/mm6f8c20082b

Update

I just found that as a shortcut, you don't have to open the document in Pages. You can use the option menu in Pages desktop view to 'Download a Copy ...'. Use the option(menu) key on your keyboard, or click your secondary mouse button (usually the right button on a right-handed mouse). See screenshot.

Solution 2:

If you are stuck and just need some of the content of the file, you can rename it to .zip (e.g. example.pages to example.zip) and unzip it.

The unzipped files will include some PDFs and PNGs which is some of the text and image content of the document.

This worked for what I needed just now, but of course it is not as good as getting the file converted properly on a Mac.