How a Recipe Book Cut File Size and Boosted Mobile Readability for Kindle Book Publishing

Background

A cookbook submitted to KDP had a fixed-layout EPUB file exceeding 120MB. Mobile previews failed to render properly, and delivery fees were significant due to the large file size.

Challenge

• Incompatible previews on smartphones and tablets.

• High delivery fees reducing author contribution per sale.

• Accessibility concerns, including broken table of contents and missing semantic headings.

Solution

Estorytellers recommended switching to reflowable EPUB and applied optimization steps:

• Converted styled callouts and decorative elements to scalable formats.

• Compressed images and embedded fonts efficiently without sacrificing quality.

• Validated the table of contents and ensured semantic headings for accessibility.

• Tested file on multiple devices for display and functionality.

Outcome

• File size reduced from 120MB to 48MB, lowering delivery fees.

• Mobile readability improved dramatically.

• Accessibility compliance ensured a smoother approval process.

• Kindle book publishing requirements fully met.

Converting the recipe book to reflowable EPUB optimized file size, lowered delivery fees, and improved mobile readability. Estorytellers’ file-prep expertise ensured Kindle book publishing guidelines were fully met. Authors gained higher contribution per sale and accessible, error-free previews, providing a better reader experience while keeping costs and technical issues in check.