A Format

SaaS Founder eBook Format Spec for KDP and Direct Sale

The exact word count, trim size, file format, DPI, and pricing specs SaaS founders need to publish a playbook on KDP and sell direct from their own site.

If you're a SaaS founder sitting on a real playbook, the gap between "I should write a book" and an actual finished file is almost always a spec problem, not a writing problem. You don't know what word count KDP expects, what trim size reads as credible for a business book, or what your front matter needs to include before you can upload anything. This page lays out the exact production specs for a founder ebook, sized for both Kindle Direct Publishing and a direct sale off your own site. Once you know the numbers, the writing becomes the only hard part left, and Quari Press builds the manuscript, cover, and files around these specs automatically.

Why founder books need different specs than fiction

A business memoir or playbook from a SaaS founder gets read differently than a novel. Readers skim for frameworks, jump to chapters that match their current problem, and expect the book to respect their time. That changes the production math. Shorter chapters, clear headers, and a word count on the lean side all signal that the founder understands the reader's constraints, not just their own story. A bloated 90,000-word founder book reads as padding. A tight 30,000 to 45,000-word book reads as someone who edited themselves.

KDP versus direct sale: two different files, two different rules

Kindle Direct Publishing wants a reflowable EPUB or a properly formatted DOCX that KDP converts on upload, plus a separate print-ready PDF if you're doing paperback. Direct sale off your own site gives you more freedom: you can ship a PDF, EPUB, and MOBI bundle, price it however you want, and skip Amazon's royalty cut entirely. Most SaaS founders end up doing both, using KDP for discovery and direct sale for margin. The specs below cover the file types you need for each path so you're not reformatting twice.

The front and back matter Amazon and readers both expect

KDP has soft expectations around front matter (title page, copyright page, optional dedication) even though it won't reject a file missing them. Readers have harder expectations: no table of contents on a business book reads as unfinished, and no author bio at the back leaves money on the table if the goal is booking calls or growing an audience. Build the back matter to do work, a clear CTA to your newsletter, your calendly, or your next book, not just a thank-you note.

Pricing a founder book without underselling the expertise

Founder playbooks are priced differently than fiction because the buyer is evaluating expertise, not entertainment. A 35,000-word tactical guide from someone who scaled a SaaS company to real revenue can hold a $19 to $39 price point on direct sale, well above typical KDP ebook pricing, because the buyer is really paying for the shortcut. On KDP itself, price closer to market norms ($9.99 to $14.99) since Amazon buyers compare against a wider shelf, and use direct sale for the premium price point.

Format Spec

Cover DPI
300 DPI for print-ready cover, 72-150 DPI for ebook thumbnail
Word count
25,000-45,000 words for a tactical founder playbook
Back matter
Author bio plus a direct CTA (newsletter, booking link, or next book)
Front matter
Title page, copyright page, table of contents, optional dedication
KDP file format
Reflowable EPUB or formatted DOCX for ebook, print-ready PDF for paperback
Suggested pricing
$9.99-$14.99 on KDP, $19-$39 on direct sale
Trim size (paperback)
6 x 9 inches (standard for business nonfiction)
Direct sale file bundle
PDF, EPUB, and MOBI shipped together

Key Takeaways

  • Founder playbooks run leaner than fiction, typically 25,000 to 45,000 words, because readers are skimming for frameworks, not settling in for a long read.
  • KDP and direct sale need different file types: EPUB/DOCX plus print PDF for KDP, a PDF/EPUB/MOBI bundle for direct sale.
  • 6 x 9 inch trim size is the standard for business nonfiction paperbacks.
  • Cover files need 300 DPI for print, lower DPI is fine for the ebook thumbnail.
  • Back matter should include a real CTA, not just a bio, since the book is often a lead-gen tool for the founder's business.
  • Direct sale supports a premium price point ($19-$39) that KDP's market norms won't.

Questions Worth Asking

What word count should a SaaS founder ebook be?
Most founder playbooks land between 25,000 and 45,000 words. That is long enough to cover a real framework with examples, short enough that a busy operator finishes it in a few sittings.
Does KDP require a specific trim size?
For paperback, 5.5 x 8.5 inches or 6 x 9 inches are the two standard trim sizes for business nonfiction. 6 x 9 is the more common choice for founder books because it holds more text per page without feeling cramped.
Can I sell the same book on KDP and my own site?
Yes. Amazon does not require exclusivity unless you opt into KDP Select, which most founder authors skip specifically so they can also sell direct.
What DPI do my cover images need to be?
300 DPI for print-ready cover files, 72 to 150 DPI is fine for the ebook cover thumbnail since it only ever displays on screens.
Do I need an ISBN?
KDP will assign you a free ISBN if you don't have one. If you plan to sell the paperback outside Amazon too, buying your own ISBN through Bowker gives you more control over the listing.

Volumes Worth Commissioning

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The Churn Autopsy

A founder walks through the exact month their churn spiked and the six changes that brought it back down.

A tactical short book built around one specific crisis: a SaaS founder's churn rate spiking past sustainable levels, and the diagnostic process, product changes, and customer conversations that fixed it. Structured as a real-time account rather than generic advice, so readers get the actual decisions, not just the framework.

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Pricing Page Confessions

Every pricing page change this founder made, what it did to conversion, and the ones that backfired.

A short, numbers-heavy book documenting every pricing experiment a SaaS founder ran over two years, including the ones that failed. Built for founders who are tired of pricing theory and want to see actual before-and-after conversion data tied to specific page changes.

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