Children’s Book Formatting for KDP and IngramSpark

Imagine a finished illustration: a child under a tree, a dog beside her, leaves filling the top of the page. You love it. Then you try to add four lines of your story. The words cover the dog, disappear against the leaves, or end up so small you have to lean in to read them.

There may be nothing wrong with the writing or the illustration. They just needed to be planned together.

That is much of the work of formatting a children’s picture book. The words need a comfortable place on the page, the pictures need room, and the story needs to make sense as you turn the pages. There are also a few printing decisions that are much easier to settle while the artwork is still in progress.

If your illustrations are already finished, your formatter can review what you have and suggest any adjustments. If you are about to commission them, this is a good time to bring your illustrator and formatter into the same conversation.

Start with the book you want to hold

Find a few picture books you like and look at them as physical objects. How big are they? Can you comfortably hold one open and read it to someone beside you? Does the story use one picture per page, or does an illustration stretch across both pages?

Those choices affect the artwork. A tall page gives you a different space to work with than a square one. Turning a finished portrait illustration into a square may mean cropping something you wanted to keep.

The finished width and height are called the trim size. Before choosing one, check that each printer offers it with the binding, paper, and color option you want. A paperback and a hardcover edition need their own checks.

Page count matters here too. Under KDP’s current print options, a 32-page color paperback needs premium color: standard color starts at 72 pages. KDP hardcovers start at 75 pages, so they will not fit a 32-page book. For a short hardcover, check IngramSpark’s available combinations of size, binding, and color.

It is worth finding this out before commissioning the art. You can then give the illustrator a firm size and plan around the printing cost.

Count the pages that aren’t the story

“A 32-page book” does not mean 32 pages of story plus a title page and a dedication. Those pages take up space in the interior too. So do blank pages, whether or not they have a page number printed on them. The cover is a separate file.

Your book can be a different length if it suits the story and your chosen print setup. A rough page plan will help you work out how many illustrations to commission.

01 / Plan the page turns

One possible 32-page book

1. — 1
2. 2 3
3. 4 5
4. 6 7
5. 8 9
6. 10 11
7. 12 13
8. 14 15
9. 16 17
10. 18 19
11. 20 21
12. 22 23
13. 24 25
14. 26 27
15. 28 29
16. 30 31
17. 32 —

• 1–3: Title, copyright, dedication
• 4–29: Story
• 30–31: Ending; 32: Closing
• Dash: Inside cover

Try making a rough paper version. Number every page and write a sentence about what belongs on it. Read the story aloud as you turn through it. If the words say, “And behind the door was…” you probably want the reader to turn the page before seeing what is there.

Give the words a place in the illustration

Return to the child under the tree. If the illustrator knows where those four lines will go, they can leave a quieter patch of sky or grass for them. That usually feels more natural than finding an empty corner after the picture is finished.

Sharing the text for each page or spread gives your illustrator something to work around, even while you are still polishing the wording. You could ask them to include the words in their sketches so you can see how everything fits together.

An editable manuscript, kept separate from the art, makes later changes easier. If you change a character’s name or fix a sentence, the formatter can update the type without asking the illustrator to repaint anything.

When you review sample pages, look at them at the size they will print. A line that looks generous on a large monitor may be awkward to read in a book held at arm’s length. There is no single font size that works for every picture book: the typeface, line length, background, and intended reader all matter.

Read a whole spread aloud, too. You may find a line break that interrupts the sentence, or a passage that asks the reader to jump back and forth across the picture. Those are useful things to catch before the full book is laid out.

Leave extra art around the edges

If an illustration reaches the edge of the finished page, some artwork needs to extend beyond that edge. This extra area is called bleed. It gives the printer room to trim the paper without leaving an unintended white sliver.

For KDP, add 0.125 inches of bleed at the top, bottom, and outside edge. If any page needs it, set up the whole interior for bleed. The diagram uses an 8.5 × 8.5-inch book. See KDP’s sizing guide.

02 / See what gets cut away

The artwork is bigger than the page

Show after trimming

1. BleedExtra background art. This strip gets cut away.
2. Trim lineThe edge of the finished page.
3. Safe areaKeep words and important details inside it.

Your illustrator will need both the finished size and the size with bleed. A template with the safe area marked helps them leave enough room around a character’s hand or the last word of a sentence.

Also check image resolution at the size the artwork will actually be placed. KDP calls for at least 300 dpi in its paperback guidelines. For a simple example, 2,550 pixels across gives you 300 pixels per inch across 8.5 inches, before allowing for bleed. Stretch those same pixels across 17 inches and you have only 150 pixels per inch. Changing the resolution label alone will not add detail.

Keep the important parts out of the middle

The gutter is where the pages meet at the binding. Let the scenery cross it, but keep faces, words, and little story clues on one page where readers can see them.

03 / Make room for the binding

Move the character, keep the landscape

Too close to the middle

The face curves into the binding.

Room to see the whole face

The character and words each have their own space.

For IngramSpark color interiors, allow for its recommended 0.5-inch safety margin and, for perfect-bound and hardcover books, a 0.125-inch white strip at the binding edge. Your formatter can use the file creation guide to set up the spread.

A flat screen preview cannot show exactly how a bound book will open. If a spread looks tight near the middle, a note on your proofing list will help you remember to check it in the printed copy.

Prepare a file for each edition

You can design the book as facing pages and still export it correctly for printing. KDP and IngramSpark want the interior PDF in single pages, in reading order. A two-page illustration becomes two consecutive PDF pages. The cover is supplied separately.

For IngramSpark, the color interior also needs the specified PDF/X format, CMYK color, and embedded fonts, without crop marks. Your formatter should check the export against the current file requirements. If you are using both platforms, check the file for each one; an accepted KDP upload does not confirm that it meets IngramSpark’s requirements. Our KDP and IngramSpark comparison goes into more detail.

For the ebook, think about how the reader will see the page on a small screen. When the position of the words and pictures matters to the story, a fixed-layout edition usually makes sense. It keeps them in place. A more text-led children’s book may suit a reflowable ebook, where the reader can change the type size.

Fixed layout still needs its own review. Can someone read the words on a phone? Does a spread work when the device shows one page at a time? Would enlarged text help? Amazon’s fixed-layout guidance covers text pop-ups and reading order. Agree on the intended stores and viewing features before the ebook is built, then test the delivered file in the relevant previewers.

Read the printed proof before you publish

It helps to leave room in your schedule for a proof copy and another round of changes. Once the platform has accepted the file, the printed proof gives you a chance to see how the book looks and feels on paper.

Reading it as though you are sharing it with a child can help you notice:

• Words that are hard to read against the artwork.
• Faces or small details disappearing near the binding.
• Pictures that look soft, dark, or different from what you expected.
• Page turns that reveal something too soon, or leave an awkward pause.
• Missing text, unexpected blank pages, or an ending followed by pages you did not anticipate.

If you plan to sell editions from both printers, a proof from each lets you check both versions. A single list of corrections, with page numbers, makes it easier to review the revised files before approving them.

What to send your formatter

You can start the conversation before every illustration is complete. Your manuscript, a rough page plan, and a few illustrations or sketches give your formatter a useful starting point. Details about the print size, platforms, any ebook plans, and your hoped-for publication date will help them understand what you have in mind.

You don’t need to have every detail settled before getting in touch. “I’m choosing between square and portrait” gives us a useful starting point, and we can work through the options while the pages can still change.

Not every illustrated children’s book is a picture book. If yours is an activity book or workbook, with exercises, puzzles, or sidebars on most pages, our custom interior design service may suit it better.

At Wellset Books, we lay out your supplied text and illustrations, prepare sample spreads for you to review, and build the files for the platforms in your quote. You can see what is included in our children’s book formatting service, or tell us about your book if you would like us to look at what you have so far.