If you’ve ever tried to format a manuscript for Amazon KDP in Google Docs, you already know the frustration. Margins shift. Page sizes reset. There’s no clear way to format your book correctly — unless you download a template, upload it, adjust it manually, and hope it still looks right when printed.
But it doesn’t have to be that way.
Whether you're publishing a novel, workbook, journal, or large-print edition, there's now a much faster and easier way to format your book for Amazon KDP — directly inside Google Docs — using the KDP Doc Sizer™ Add-On.
Why Formatting in Google Docs Can Be So Frustrating
Google Docs is great for writing — fast, cloud-based, simple to use. But when it comes to layout and formatting for printing, it falls short in a few key areas:
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You can’t choose standard KDP book sizes like 6" x 9" or 8.5" x 11"
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The default “Page setup” menu doesn’t offer book-friendly presets
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Margins can’t be saved or named for reuse
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Layout breaks can happen when printing or exporting to PDF
That’s why some self-publishers give up on Docs and switch to Word or InDesign — even if they prefer writing in Google Docs.
Meet the KDP Doc Sizer™ Add-On
The KDP Doc Sizer™ is a Google Docs Add-On designed specifically for self-publishers. It allows you to:
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Instantly resize your document to any standard KDP trim size
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Choose from both paperback and hardcover options
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Apply large print and custom margins with one click
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Use either inches or centimeters, depending on your region
And best of all — it works inside Google Docs. No need to switch platforms or use clunky templates.
👉 Install KDP Doc Sizer™ for Free
How It Works (2 Clicks, Done)
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Open your manuscript in Google Docs and go to
Extensions > KDP Doc Sizer > Open -
In the sidebar, choose your desired size (e.g. “6 x 9” paperback). Click once — your page size updates instantly.
The add-on even detects your current document size and displays it clearly, so you always know what layout you’re working with.
No templates. No manual margin adjustments. No file conversions. Just clean, repeatable formatting.
Supported Trim Sizes
Free version includes:
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5 x 8”
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5.5 x 8.5”
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6 x 9”
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6.14 x 9.21”
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8.25 x 11”
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8.5 x 11”
Paid version adds:
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Large print formats (7 x 10”, 8.5 x 11” with larger margins)
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Custom page sizing (enter your own dimensions)
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Custom margins (including mirrored or bound-book margins)
You can choose a monthly subscription ($4.99) or a one-time license ($29.99) depending on your workflow.
Works for All Types of Books
This tool is ideal if you're publishing:
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Novels and short stories
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Journals or notebooks
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Workbooks and educational guides
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Large-print editions
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Nonfiction paperbacks or hardcovers
It works equally well for indie authors, educators, marketers, and freelancers — anyone producing printed books on Amazon KDP.
Common Questions
Does this replace Amazon’s Word templates?
Yes — it’s designed to avoid downloading, uploading, and modifying Word KDP templates. Instead, you format your Google Doc directly.
Do I need to install anything else?
No — it’s a one-click Add-On for Google Docs. No extra software or downloads.
Can I switch between sizes later?
Yes. You can resize your document anytime. It’s ideal for authors who release both standard and large print editions. (Though, you might want to save an individual version once it's finished, then make a copy and re-size. That's what we do when formatting our own KDP Docs!).
Does it work with Google Docs on mobile?
No — Google Docs add-ons only work in the desktop version. Use Chrome or Safari on a computer.
Why This Add-On Saves You Hours
Most KDP authors waste time trying to manually apply formatting that Google Docs simply wasn’t designed to handle. KDP Doc Sizer™ changes that by giving you exactly what you need:
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Reliable, repeatable layout control
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Peace of mind knowing your doc is KDP-compatible
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Simple interface that integrates with your workflow
If you write in Google Docs but publish on Amazon KDP, this tool saves hours of frustration — every time.