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Supported formats (EPUB, Kindle, MP3, M4B)

Formats vary by product; redemption and library downloads show only what the title supports.

Updated Jul 5, 20264 views

Ebook formats

After redemption or from /library, ebooks may offer:

EPUB — generic_epub in download APIs
Apple Books — apple_books
Kindle — kindle

Some guides also discuss PDF readers for universal viewing. See Download ebooks.

Audiobook formats

Audiobooks commonly ship as MP3 or M4B (chapter-friendly). Use any compatible player after download.

Redemption-specific reference

For format availability immediately after redeeming a code, see What formats are available after redemption? in the Redemption help category.

Bundles

Bundle products may download as a ZIP archive containing multiple files. Extract on your computer before opening individual titles.

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