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📚 IngramSpark Hardcover Formatting
IngramSpark hardcovers reach 40,000+ retailers, libraries, and school systems worldwide — but the file specs are stricter than KDP. Wrong ink density causes dark, muddy prints. Wrong case wrap dimensions get rejected. We know every IngramSpark requirement by heart.
✓Spine width calculated from IngramSpark's exact formula
✓Interior PDF to IngramSpark's current print spec
✓Separate KDP files also provided if needed
✓300 DPI throughout — offset printing quality
✓File submitted through IngramSpark pre-check before delivery
✓Reaches Barnes & Noble, Waterstones, libraries, and school systems
Why Kidillus
Why Authors Choose Us
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First-Upload Guarantee
KDP or IngramSpark rejects our file due to a technical error? We fix it free. No argument, no extra invoice — your upload passes or we keep working.
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Adobe InDesign — Not Word
We use industry-standard software. Word templates break on export. InDesign anchors every element precisely — your text won't shift, your images won't move.
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CMYK — Not RGB
Uploading RGB files causes unexpected colour shifts in print. Every file we deliver is in CMYK mode — what you proof is exactly what you print.
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Part of Your Full Studio
Already illustrated with Kidillus? Your formatter gets files directly from your illustrator — no size mismatches, no re-exports, no confusion.
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Upload Walkthrough Included
We guide you through KDP upload — paper type, preview approval, pricing setup. You're never left alone with a file and a confusing dashboard.
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1,000+ Books Published
We've formatted books for authors in 32+ countries. Every edge case, every KDP rejection reason, every IngramSpark quirk — we've seen and solved them all.
KDP and IngramSpark both print children's books, but IngramSpark requires CMYK colour with a maximum ink density of 240% — stricter than KDP. IngramSpark also uses a different spine width calculation formula. You can review our <a href='/learn/kdp-vs-ingramspark' style='color:var(--fmt-accent);text-decoration:underline;'>full platform comparison guide</a> for more details. We prepare separate, optimized files for each platform.
IngramSpark distributes your hardcover to 40,000+ retailers worldwide — including Barnes & Noble, Waterstones, Book Depository, and library procurement systems. KDP does not offer this level of physical distribution. For authors who want their hardcover in bookshops and libraries, IngramSpark is essential.
Yes — many authors use KDP for Amazon paperback sales and IngramSpark for hardcover and wider bookshop distribution. Our Full Platform package includes files for both. You will need to set your KDP price slightly higher than the IngramSpark wholesale price to avoid conflicts with Amazon's pricing algorithm.
A standard 32-page picture book is formatted and delivered within 3–5 business days. Rush delivery (48 hours) is available at an additional fee. Larger page counts and coloring books may take 5–7 business days.
Yes. Every file is built to KDP's current specifications. In the rare event of a technical rejection caused by our formatting, we fix it at no additional cost — no argument.
Send your final illustration files (JPG/PNG/TIFF at 300 DPI minimum) and text manuscript (Word/Google Doc). If your illustrator has placed text on the artwork already, send the layered PSD or TIFF files. We confirm receipt within 4 business hours.
Pricing starts from $100 for this service. Exact cost depends on page count and whether you need print-only, print + ePub, or the full platform package. Get a free itemised quote at kidillus.com/price-quote.
About Our IngramSpark Hardcover Formatting Service
Kidillus provides specialist ingramspark hardcover formatting for independent authors self-publishing children's books. Our team works exclusively on illustrated books — picture books, board books, activity books, and coloring books — where the technical formatting requirements are significantly more complex than a standard novel or memoir.
Every file we produce meets the current specifications for Amazon KDP and IngramSpark. We use Adobe InDesign for all formatting work — not Word, not Canva, not automated tools — because only professional software guarantees that every element stays anchored correctly through the export and upload process.
