Overview
calibre organizes ebook collections and provides reading and conversion tools. It is useful for managing files you can legitimately access, rather than a promise that every protected bookstore purchase can be freely converted.
What it is for
- Organize ebooks and edit library metadata.
- Read and convert supported ebook formats.
What to check first
- Conversion quality depends on the source layout and target format.
- Verify rights, device compatibility and restrictions before converting files.
A useful first test
Import an unrestricted sample ebook, edit its metadata and inspect the converted result on your actual reader.
Cost and hosting
Free software; donations are optional.
Primary sources
This is a review of official documentation and source repositories, not a hands-on certification. Test your own files before migrating.