Prepare KDP formatting from the manuscript itself

Print formatting starts with linked measurements

Trim size determines the physical page. Page count affects the minimum inside margin and the width of the spine. Those dimensions affect the full cover spread. Changing one choice can change several files, which is why copying numbers from a generic checklist creates avoidable errors.

Novelbound calculates page count, gutter guidance, spine width, and cover dimensions together. The values remain visible beside the export rather than being buried in a spreadsheet that can drift away from the final manuscript.

• Supported print trim sizes
• Page-count and gutter guidance
• Spine width to the thousandth of an inch
• Full cover dimensions for the selected book

EPUB and print interiors solve different problems

An EPUB is reflowable: the reader changes font size and the page rearranges. A print interior is fixed: margins, page breaks, headers, and blank pages must make sense on paper. Treating one as a visual copy of the other produces a poor ebook or a broken print file.

Novelbound maintains separate outputs from the same source manuscript. That preserves one source of truth while respecting the requirements of each format.

Check the listing details before Amazon checks them

File acceptance is only part of KDP preparation. Metadata can also cause delays or removals: title and subtitle length, prohibited promotional wording, URLs in descriptions, too many keyword fields, and mismatches between the cover and listing.

Novelbound's rejection checks surface those risks before upload. Amazon still controls review and approval, but the preventable errors can be fixed while all the book information is in front of you.