Once a book has been submitted for printing through Blurb.com, it cannot be edited. This includes making changes to text, images, or formatting. If an author realizes they need to make modifications after submission, the typical process involves canceling the current order if possible and then revising the book in the Blurb Book Creator or the applicable design tool. After making the desired edits, the author can then upload the revised version and submit it again for printing. It is important to note that reviewing the book thoroughly before submission can help prevent the need for subsequent changes. For those who are unsure about their book's content or layout, it may be beneficial to take some extra time during the design and review process. Authors can always refer to the website for any details regarding the submission process and to see if any updates or features might allow for alternate options in the future.