Book Designer AI

AI Copy Editing · Three Ways to Work

A professional copy edit, on your terms.

Cantos reads your entire manuscript and copyedits it with a professional's ear: grammar, punctuation, spelling, style, and the consistency slips that hide across three hundred pages. Your voice stays yours. These are corrections, not rewrites, and you decide exactly how hands-on to be. $99.99 for your whole book.

Start My Copy Edit

Want to see Cantos work first? Try the free 30-page interior preview.

Your manuscript is never used to train AI. Ever.

Red-Line mode: real tracked changes
She could'nt couldn't remember the last time the house had been this quiet,. itIt was the kind of silence that made you check the stove twice twice, then check it again.

An illustration of Red-Line mode: every fix arrives as a Word tracked change you accept or reject, one by one, in your own word processor.

70,000+ Authors Served · 15 Years of Publishing Craft · 300,000+ Books Published

From the team behind BookDesignTemplates.com, trusted by first-time authors since 2011. Real people who have designed books for fifteen years, now working for you.

As seen on  Amazon KDP · IngramSpark · BookBaby · Lightning Source · The Huffington Post · The Creative Penn · BAIPA · PBS

Choose Your Comfort Level

Three ways to work. Same careful edit.

Hands-offHave It Done For You

Cantos copyedits the whole manuscript and applies every correction for you, then shows you a full report of what changed and why. The fastest path to a clean book.

Side by sideWork Together

Cantos suggests each fix and you approve or decline them in a checklist, section by section. You stay in charge of every comma. Nothing changes without your say.

In your Word appRed-Line

Cantos returns your manuscript with every correction as a real Word tracked change, with its reasoning. Review in Word, LibreOffice, Pages, or Google Docs, accept what you like, and upload the result.

What Gets Checked

The whole manuscript. Even the hard parts.

Grammar, punctuation, and spelling, yes. But also the things a quick pass misses: consistency across chapters, style slips, and the text inside your tables and boxes. Big books are handled carefully, section by section, so nothing gets skipped. And it is honest with you: if something was left alone, the report says so.

One App, The Whole Book

Cantos handles the full stack.

Interior, cover, copy editing, and the marketing kit, all in one place, each $99.99, with bundles that save up to $150. Start with what you need today and add the rest whenever you are ready.

Why We Built This

A note from Tracy Atkins, founder

Fifteen years ago, my team and I started BookDesignTemplates.com because first-time authors kept telling us the same thing: I wrote the book, but I have no idea how to make it look like a real one. Since then more than 70,000 authors have trusted our designs, and more than 300,000 books have been published with our work inside them.

Cantos is the next step. It is not a gimmick that spits out AI slop for you to fix. It is a professionally trained book designer that reads every word you wrote and sets it with a craftsman's care, so your book looks made, not generated.

And your words stay yours. We claim no copyright on your book. We never use your manuscript to train AI. We built this for authors, by people who have spent their lives around books. You bring the story. We help you cross the finish line.

Tracy Atkins, founder

Before You Start

The questions authors ask about editing.

Will it rewrite my voice?

No. This is a copy edit: corrections to grammar, punctuation, spelling, and consistency, not a rewrite of your prose. Cantos is trained to fix the error and leave the author alone. And in Work Together or Red-Line mode, nothing changes without your explicit approval.

Is this a developmental edit?

No, and we will not pretend otherwise. Cantos does not restructure your plot, reorder chapters, or critique your story. It makes your finished manuscript clean, correct, and consistent, the way a professional copyeditor would.

What exactly is Red-Line mode?

Your manuscript comes back as a Word document with every proposed fix as a real tracked change, each with a short reason. You review them in your own word processor, accept or reject one by one or all at once, then upload the resolved file. It is the same workflow professional editors use.

How long does it take?

Most books are done in minutes. A very large manuscript is edited carefully in sections, and you can watch the progress as it goes. There is no deadline on your end, ever. Your project waits for you.

Is my manuscript safe and private?

Yes. It is sent over a secure, encrypted connection, never sold, licensed, or shared, and never used to train AI. You can delete your files or your entire account at any time from your account page.

Publish clean. Keep your voice.

A careful, professional copy edit of your whole manuscript, your way. $99.99, with no deadline.

Start My Copy Edit

Corrections, not rewrites. Never used to train AI.

Start My Copy Edit