For ebooks that I publish to sell, I use Vellum (Mac only). But if it was more of a PDF only kind of thing, without needing to be optimized for traditional book

For ebooks that I publish to sell, I use Vellum (Mac only). But if it was more of a PDF only kind of thing, without needing to be optimized for traditional book formatting or ereaders, I'm guessing exporting to PDF through something like Word would be plenty good enough.