From manuscript to publish-ready book
You've finished your book. To publish it, you need the pages as a print PDF, an ebook file (EPUB) and a cover that fits the finished book. Upload your Word file and we'll make all of them. You see every page before you pay, and we check each file before you download it.
No account No subscription Files deleted after six hours
Print-ready files
We set your pages and cover to KDP's measurements, and test your ebook with EPUBCheck, the checker ebook stores use.
See the whole book first
Turn every page of your finished book on screen, cover included, before you decide to buy.
$29 per book
You pay once, and only when you want the files. Building the book and checking every page cost nothing.
Where you can publish
Amazon KDP
We set the print files to KDP's measurements and give you the ebook cover as a JPEG, which KDP takes.
Apple Books, Google Play Books and Kobo
We test the ebook with EPUBCheck and make its cover large enough for all three stores.
IngramSpark and Lulu
IngramSpark prints all eight of our sizes and Lulu five. Each asks for a cover made on its own template, and the table says what else differs.
Free checks before you publish
The free tools run in your browser, so your files stay on your computerPrint PDF checker
About to upload your interior to KDP? Check its page size, margins, fonts and pictures first, page by page.
Cover size checker
Drop in your cover PDF and find out whether it fits your book. If it doesn't, we tell you why.
EPUB accessibility checker
Selling ebooks in the EU? See whether your EPUB carries the accessibility information EU rules ask for, and whether it's true.
Margin & gutter calculator
Find out how wide your margins need to be for KDP, from your book's size and page count.
Spine & cover size
Work out how thick your book's spine will be and how big to make the full cover, from your page count and paper.
Structure review
Upload your Word file and see which lines will become chapter titles, and why, before anything is laid out.
How it works
Upload your manuscript
We read its chapters and headings and show you what we found, so you can correct anything we got wrong.
Choose the size and style
Pick the size of your paperback and one of three interior designs: Classic, Novel or Manual.
Make the cover
Use your own front picture, or let us set the cover in type. Add back-cover text and an author photo if you like.
Check every page
Turn every page as it will print. The cover is sized to your final page count, because the spine depends on it.
Pay and download the files
You get the print interior, the ebook, the ebook cover, the print cover and twenty pages to print at home as a proof.
Two sample books
The Weight of Small Hours
A. N. Author
A short novel in twelve chapters, which we set at 5.5 × 8.5 inches on white paper in the Novel design. The PDF and the EPUB below are exactly what the app produced, with nothing changed afterwards.
The cover picture came with the manuscript. We set the title, the author's name and the back-cover text on it. The picture above shows the same cover sized for a 144-page book, so you can see the title on the spine. The sample itself has 32 pages, and KDP prints no spine text on a book under 79 pages. The ebook uses the front of the same cover.
The Working Week
A. N. Author
A practical guide in seven chapters, which we set at 6 × 9 inches on white paper. Because the manuscript has footnotes, the app treated it as non-fiction and chose the Classic design with a contents page, as it does for any such book. The files below are exactly what the app produced.
Sections, lists, tables and quotations come out as they are in the Word file, and each footnote sits at the foot of the page that refers to it. The manuscript had no cover picture, so the ebook cover is set in type. The picture shows pages 4 and 5.
Guides
Why KDP rejected your interior
Nine reasons KDP turns an interior down, and how to check for each one before you upload.
How KDP gutter margins work
The inside margin KDP asks for grows with your page count, and the margin changes the page count. Here's how to settle both.
EPUB accessibility & the EU Act
The accessibility information EU rules ask ebooks to carry since June 2025, and why a false claim is worse than none.
All guidesComparisons
A Vellum alternative for Windows
Vellum runs only on a Mac. Torcul runs in your browser, on Windows or any other computer.
Atticus compared
How Atticus is sold and what we do differently.
What formatting a book costs
What a formatter, a software licence or Torcul costs you in money and time, including the costs that are easy to miss.
All comparisonsQuestions
Does Torcul run on Windows?
Yes. It runs in your web browser, so it works on Windows, macOS and Linux, and there's nothing to install.
Which manuscript files can I use?
A Word document (.docx) or a Markdown file. If you wrote your book in Google Docs, download it as a Word file first, with File → Download → Microsoft Word. From Google Docs to a KDP paperback walks you through it.
Which languages can a book be in?
English, German, French, Spanish, Italian, Portuguese, Dutch and Turkish. Each one is hyphenated and punctuated by its own rules.
One thing to know about Turkish: KDP doesn't list it among the languages it publishes. A Turkish ebook can go to other stores: Google Play Books accepts books in all languages, Apple Books lists Turkish, and Kobo takes books in virtually any language. We still make the print PDF and the cover to KDP's measurements, and another printer may ask for measurements of its own.
Which trim sizes can Torcul set?
Eight paperback sizes, in inches: 5 × 8, 5.06 × 7.81, 5.25 × 8, 5.5 × 8.5, 6 × 9, 6.14 × 9.21, 6.69 × 9.61 and 7 × 10. Our free calculators work for all sixteen of KDP's sizes.
Can it make a hardcover?
Yes. Ask for a hardcover cover and we make one beside the paperback's, from the same design, laid out to KDP's hardcover measurements. The pages stay the same file. KDP prints hardcovers in four of our sizes, from 75 to 550 pages. We haven't had a hardcover printed yet, so order a proof copy before you publish.
Does Torcul write or rewrite my text?
No. We lay out the text you wrote. Nothing in it is generated or rewritten.