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Print-on-Demand Publishing Guide

Publish a professional paperback without ordering inventory, negotiate the platform choices, and set your royalties up for the long haul.

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Choose the Right POD Platform

The two platforms most indie authors use are KDP Print and IngramSpark. KDP Print is the right starting point if your primary market is Amazon: zero setup cost, seamless integration with your ebook listing, and direct Prime shipping for buyers. IngramSpark gives you access to Ingram's distribution network, which supplies bookstores and libraries worldwide. The setup fee per title is around $49 if you use a paid plan, though promotional periods sometimes waive it. A common strategy is to use KDP Print for Amazon and IngramSpark for everywhere else, setting IngramSpark to exclude Amazon to avoid competing with your own KDP listing. Compare royalty calculators on both platforms before you commit to pricing.

Nail Your Interior File

A print file that looks fine on screen can produce blurry text or misaligned margins in print. Use a design tool built for print — Vellum (Mac), Atticus, or Adobe InDesign — rather than Microsoft Word, which handles print PDF export inconsistently. Set your document to your exact trim size from the start rather than scaling later. Embed all fonts before export. If your book includes images, export them at 300 DPI and place them in the file at their final print size. For black-and-white interiors, convert images to grayscale in your editing software before placing them; the platform's grayscale conversion often produces muddy results. Order a physical proof copy and read every page before you approve the file for sale.

Design a Cover That Survives Print

Digital cover design and print cover design follow different rules. Your cover must account for bleed — typically 0.125 inches on all sides — so that color extends to the edge of the trimmed page without a white border. The spine width is calculated by the platform based on your page count and paper stock; get this number from their spine calculator before you finalize the design. Use CMYK color mode, not RGB, because colors shift when converted for printing. Fonts must be outlined or embedded. Avoid placing critical text or design elements within 0.125 inches of the trim line. Request a physical proof before approving — colors on screen consistently appear brighter than colors in print.

Set Your Price and Royalties Strategically

Price too low and you earn almost nothing after printing costs. Price too high and you lose browsers who would have bought at a lower price. The sweet spot for most trade paperbacks is $12.99 to $17.99 depending on page count and genre. Use the royalty calculator on KDP and IngramSpark to see your per-copy earnings at each price point before you decide. Remember that extended distribution through IngramSpark pays a lower wholesale percentage because retailers take a discount, so your royalty on a bookstore sale is lower than your royalty on a direct Amazon sale. If you want bookstore placement to be viable, your list price needs room for a 55% retail discount without leaving you at zero earnings.

Set Up Distribution Correctly

Distribution setup is where most first-time POD authors make irreversible mistakes. If you use both KDP Print and IngramSpark, disable Amazon distribution in your IngramSpark settings to avoid two listings competing for the same buyer. Make sure your metadata — title, subtitle, author name, BISAC categories — matches exactly across every platform to avoid catalog conflicts. Set your publication date accurately; backdating a book makes it ineligible for “new release” merchandising. If you want expanded distribution through KDP (which uses Ingram anyway), compare the royalty rates against IngramSpark's direct distribution before choosing. Expanded distribution on KDP is convenient but pays lower royalties than IngramSpark's own distribution channel.

Get Reviews Before You Run POD Ads

A POD book with zero reviews is difficult to sell through paid advertising because the cost per click is the same whether your listing converts or not. Before you invest in Amazon Ads or BookBub promotions for your print edition, target at least ten to fifteen genuine reader reviews. Use iWrity to distribute ARCs to readers who specifically read and review print or print-format content in your genre. Time your review push to coincide with your POD launch so your listing has social proof from day one. A physical book with a handful of specific, thoughtful reviews converts dramatically better than the same book with a blank review section, even when the reader is discovering you through an ad.

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Frequently Asked Questions

What is the difference between KDP Print and IngramSpark?

KDP Print is Amazon’s native POD service. It integrates directly with your KDP account, costs nothing to set up, and gives your paperback prime placement on Amazon. IngramSpark distributes to thousands of booksellers, libraries, and international retailers beyond Amazon, but charges a setup fee per title and requires tighter file specifications. Most authors use both: KDP Print for Amazon and IngramSpark for extended distribution. For bookstore distribution, IngramSpark is effectively required since most stores won’t stock books sourced from a competitor’s platform.

How do I format my manuscript for print-on-demand?

Start with your trim size — 6x9 inches is the most common for trade paperbacks; 5x8 works well for shorter fiction. Set your margins to at least 0.5 inches on all sides, with a larger gutter margin depending on your page count. Use an embedded font rather than a system font to prevent rendering issues. Export as a PDF with fonts embedded and images at 300 DPI minimum. For your cover, use the platform’s spine calculator to get the exact width based on your page count and paper type. A cover template generated by KDP or IngramSpark saves you from the most common sizing errors.

How much royalty will I earn from POD sales?

KDP Print pays 60% of your list price minus the printing cost, which varies by page count, trim size, and paper type. A 300-page 6x9 paperback printed in black and white typically costs around $3.65 to print on KDP. If you price it at $14.99, your royalty is roughly $5.34 per copy sold on Amazon. IngramSpark pays a wholesale percentage after printing costs, and the math gets more complex with extended distribution because retailers take a discount. Run the royalty calculator on each platform before setting your price, and always order a proof copy to verify print quality before going live.

Can I sell direct and still use POD?

Yes, and selling direct is one of the most profitable ways to use POD. Services like Lulu Direct and Printify integrate with Shopify or WooCommerce so orders placed on your own site trigger automatic print and fulfillment. You capture full retail price minus printing and shipping costs, which can be two to three times the royalty you earn through a retailer. You also own the customer relationship. Most authors run both channels: retailer listings for discoverability and a direct store for higher margins on readers who are already fans.

Do I need an ISBN for print-on-demand?

For Amazon KDP, a free KDP-assigned ISBN is sufficient if you only plan to sell on Amazon. But this ISBN is owned by KDP and cannot be used elsewhere. If you want your book in bookstores, libraries, or on IngramSpark, you need your own ISBN purchased through Bowker (in the US) or your national ISBN agency. A single ISBN costs around $125 in the US; a block of ten costs $295 and is more economical if you plan to publish multiple titles. Assign one ISBN per format — your ebook, paperback, and hardcover each need a separate number. Owning your ISBNs keeps you in control of your book’s metadata across all retail channels.

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