Covers & Design

Design a KDP Book Interior for Free (No InDesign)

You don't need InDesign or Affinity to build a print-ready KDP book interior. Here is the free Canva workflow, with the exact Amazon specs that get approved on the first upload.

By Nezir Basar · 2026-05-06 · 7 min read

Amazon does not care which software you use.

People assume a professional book interior needs InDesign or Affinity, software that runs into hundreds of dollars. It doesn't. Amazon cares about one thing only: your pixel dimensions.

So you can build a print-ready KDP book interior in Canva, for free, and have it approved on the first upload. I have made dozens of books this way, and below I will walk you through the exact specs, margins, and export settings I use. Get the numbers right, and Amazon accepts your file. Get them wrong, and your book gets rejected.

Let me show you how to get them right.

Why your dimensions decide everything

Most people open Canva first and worry about specs later. That is backwards.

The specs decide whether Amazon accepts or rejects your book. So we lock those in before we touch a single page.

Here is the example we will build the whole way through: a 100-prompt guided journal called Dear Son, This Is My Life Story. Same process works for any paperback interior, journal, workbook, low-content, or full text.

The plan is five steps:

Locking in the Amazon specs

Start with trim size. For this journal I use 5.5 x 8.5 inches. It is the sweet spot for journals, it fits in your hands without feeling like a notebook.

For page count, plan for around 120 pages. That gives room for the 100 prompts plus an intro, a dedication, and photo pages.

Now the part that trips people up: bleed.

What bleed actually means

Bleed is extra space around the page for anything that runs to the edge.

If you have an image that reaches the end of the page, or spills past it, you need bleed. That outer strip gets trimmed off when the book is cut. So you add a little size to the trim, and after the cut you land on the exact dimensions you wanted.

In practice that means a 5.5 x 8.5 trim becomes 5.626 x 8.75 inches in Canva, with bleed included.

This part is a little tricky the first time. Read through Amazon's docs once, study it, and it clicks. After that it is easy on every book you make.

Use Amazon's free calculator

You do not have to do this math in your head. Amazon gives you a calculator for trim size and bleed.

It is simple. You pick your ink and paper, then your trim size and page count.

For paper, I recommend black ink on white paper. It is the cheapest option, and for a text-and-prompt journal it looks clean.

Set the trim to 5.5 x 8.5, the page count to 120, and choose "with bleed." The calculator hands you the exact measurements.

It also calculates the cover. Zoom in and you see the full picture: with bleed the height is 8.75 inches, the trim is 8.5, and the safe area for your text and images is 8 inches. That leaves 0.75 inches of margin, split top and bottom.

The width works the same way. Total width is 5.625, the safe content area is 4.875. In Canva, you build to the full bleed size and keep your content inside the safe zone.

Setting up Canva with the right size

The specs were the boring part. They were also the necessary part. Now we implement them, and this goes fast.

Open Canva with a free account. Click Create design, then enter a custom size: width 5.626, height 8.75, in inches. Click create, and you get a blank page.

Set your margins to the safe zone

You need 0.375 inches of margin on every side. Anything inside that line is safe. Anything outside is the danger zone where the cut happens.

There is a quick trick to mark it. Go to shapes and add a square, not a rectangle. Set both width and height to 0.375, then press enter.

Copy that square to all four corners: top left, top right, bottom left, bottom right.

Then drag your guides to sit exactly against those squares, four times, one per edge. Delete the squares, and your safe zone is mapped. Everything inside is your playing field.

Building the prompt page template

Here is where the work pays off later. You build one prompt page perfectly, then duplicate it 100 times.

First you need the prompts themselves. You can use a free LLM, or you can use Publbee's AI chat, which we trained specifically on KDP author tasks. That focus means you get prompts written for the format, not generic filler.

I typed in: I want to write a mom-guided journal for sons. The name will be 'Dear Son, This Is My Life Story.' Give me 100 prompt questions that fit.

It returned 100 prompts, sorted into themes: childhood, early years, family heritage, teenage years, coming of age, love and relationships, parenthood, challenges and growth, wisdom and life lessons. Be more specific in your request and you get more specific questions.

Lay out the question and the writing space

Drop the first question onto the page. For the font, I use The Seasons. It is classic, emotional, and timeless. Size 23, centered, looks right.

But a question alone is not enough. People need room to write.

Go to elements, select a line, set the width, and adjust the weight. The default sits too dark, so I drop transparency to 50%. Then duplicate that line 10 to 15 times down the page.

Add the repeating emotional touch

Add a small line of text at the bottom that repeats on every page.

Mine reads: Sharing these memories with you is one of my greatest joys.

Make it smaller than the prompt. It is a quiet design detail that ties the whole book together. From here, add flowers, leaves, a small icon, whatever fits the mood. This is where you get creative.

Building a photo page to break up the text

A hundred text pages in a row gets boring. The book needs variety.

So add a second template: a photo page. I insert one after every 10 prompts.

Title it something warm. Mine says Where Words Fall Short. Add a simple frame at the bottom to make it obvious where a photo goes. That is ten seconds of work, dropped in ten times across the book.

Now you have two templates: a prompt page and a photo page. That is the entire engine of the book.

Scaling up to a full book

Now you scale. The rhythm is simple: duplicate the page, change the prompt, move to the next, duplicate, change, repeat.

It takes maybe an hour. That sounds like a lot, but put something on in the background and you fly through it.

Do not forget the front of the book. Add these pages before the prompts:

That front matter is exactly why we planned for 120 pages instead of 100. The extra room is for the details that make it feel like a real book.

Exporting a print-ready PDF

Now the single most important click in the whole process.

Go to share, then download, and choose PDF Print, not PDF Standard.

PDF Standard degrades your colors and resolution. PDF Print preserves everything exactly as designed.

Select all pages. For the color profile, use CMYK if you have Canva Pro, since that is the standard for professional printing. No Pro account? RGB works fine too. Then click download.

That is it. You have a 120-page, print-ready interior built for free.

If you want a faster start or a second opinion on your specs and layout, the KDP Mentor is trained to answer exactly these KDP questions, the trim sizes, the bleed math, the formatting choices that trip people up.

Your interior is print-ready, for free

You do not need expensive software to publish a professional book. You need the right dimensions and the right export setting.

Now build your interior, get it approved on the first try, and put your money toward the part that actually sells the book: the cover.