You cannot change the Digital Rights Management (DRM) setting you chose when you set up your eBook. You also cannot change the publication date after you publish your eBook. The Kindle Store will automatically enter the date you first published your book through KDP. If you make significant changes to your book content and want the publication date to reflect the date of the new version, you can resubmit your revised content as a new book. Updates to both your book title and author name are also considered significant changes. If you would like to republish your book by changing both the author name and the title name, it will need to be submitted as a new book and go through our standard review process.

Note: Your publication date isn't the same as your release date. You can change your release date if you want to make new books available for pre-order in Kindle Stores worldwide. Setting up a pre-order allows customers to order your book as early as 90 days before release date. Learn more about setting up a pre-order.

The paperback attributes listed below will be locked after publication because of ISBN requirements. They can't be updated unless you unpublish and republish your paperback as a new title.

• Language
• Book title
• Subtitle
• Edition number
• Primary author name
• ISBN
• Imprint name
• Publication date
• Ink & paper type
• Trim size