Page count is out of range

Paperbacks need at least 24 pages, hardcovers 75, and nothing may exceed 800.

What to do

1. Count every printed page, not sheets of paper: each leaf is two pages.
2. Blank pages at the end still count, and are often what pushes a book over a limit.
3. Page count also drives spine width and inside margin, so changing it changes your cover.

Check the range — the tool in this app that settles it.

Related

• Fonts are not embedded
• Text runs into the margins or the binding
• Artwork sits under the barcode
• Pages are not all the same size