Every page measured, before you upload the book.
You bring the idea and the argument. InkReady AI writes the book with you, sets the paperback interior and the wrap cover, and measures the finished files against Amazon's published print rules and our own.
No account, no card. The outline and the first chapter are free.
All 14 rules passed on the book below, checked on 19 October 2026. See the report
Preflight report
The Weekly Review · checked against kdp-spec-v1, our recorded table of Amazon's published KDP specification
All 14 rules passed
Checked on 19 October 2026. Rule 7 had nothing to measure: the book places no images. Rules 4 to 14, below
- Rule 1Every page is the trim size you chose432.00 × 648.00 ptPassed
Measured and required
Measured 6 × 9 in on all 48 pagesRequired 6 × 9 in on every page, within 0.01 pt - Rule 2The inside margin is wide enough for the page count28.44 pt, page 8Passed
Measured and required
Measured 29.16 pt at the closest measured ink, on page 16. The rendered image reads 28.44 pt, on page 8Required At least 27.00 pt (0.375 in) for a book of 24 to 150 pages. At least 26.64 pt on the rendered image, which reads in pixel steps - Rule 3The outside, top and bottom margins clear the trim30.82 pt, page 8Passed
Measured and required
Measured 30.82 pt at the closest measured ink, on page 8. The rendered image reads 32.40 pt, on page 9Required At least 27.00 pt (0.375 in) from the outside, top and bottom edges. Artwork meant to bleed runs at least 9.00 pt past the trim. At least 26.64 pt on the rendered image, which reads in pixel steps
The rules
The other eleven rules
They are listed in the report's order, each labelled with whose rule it is. On the report itself every row prints the value it measured beside the value it required; this page shows what each rule checks and why it matters.
A check here is a measurement of these files against a stated requirement. It is not a statement about whether a store will accept the book.
- Passed
Bleed is either on every page or on none
Mixing bleeding and non-bleeding pages produces a book with uneven edges.
A rule Amazon KDP publishes
- Passed
Every font is embedded in the file
A font that is only installed on your computer prints as something else, or not at all.
A rule Amazon KDP publishes
- Passed
The print files use print colour
Screen colour and print colour are different systems, and a press needs the print one.
Our own rule
- No images
Every image is sharp enough at the size it is placed
This book places no images, so there was nothing to measure.
A rule Amazon KDP publishes
- Passed
The spine width matches the page count
The spine is calculated from the pages and the paper, so the cover wraps where it should.
A rule Amazon KDP publishes
- Passed
The barcode area is clear
The printer places a barcode on the back cover, so that area has to be clear of artwork and text.
Our own rule
- Passed
Spine text follows the page-count rule
A thin book has no room for spine text, and text too near the fold prints on the front or back.
A rule Amazon KDP publishes
- Passed
No printer marks, and the file is flattened
Crop and registration marks belong to a press proof, not to an uploaded file.
A rule Amazon KDP publishes
- Passed
The file matches the PDF/X-1a profile
A single printing profile with everything embedded, which is what a press expects.
Something Amazon recommends rather than requires
- Passed
The back matter is present
Every back-matter heading the book was set with is found in the printed interior file.
Our own rule
- Passed
The margin calculation settled
Margins depend on the page count, and the page count depends on the margins. This says the loop reached a fixed answer.
Our own rule
The report also runs 20 further checks: 10 on the same print files, from the smallest type size to the file sizes, 9 on the ebook editions and 1 on the AI-disclosure record. 20 of 20 passed. Any of them that is an Amazon rule fails the whole report if it does not pass.
The book
What you bring, and what you get back
What you do, and what the product does
You give the book its thesis, the reader it is for and the points it must include, and you approve the outline. Nothing past the outline is written until you have.
Chapters are written one at a time from the approved outline, and you can read and edit every one.
If you edit the book after it is checked, the report says it no longer describes what you have.
KDP asks whether a book's text is AI-generated, and a book written here from an idea is AI-generated under KDP's definition. The disclosure answers we give you, and the line printed in the book, come from the record of how each section was produced.
We do not put your book on sale. There is no public KDP or Apple Books publishing interface, so you upload the files yourself, and acceptance is Amazon's decision. One book is written at a time per account, and there is no batch generation at any tier.
What you get back
- The interior PDF and the cover PDF, as they were checked
- The EPUB, the Word file and the screen-reading PDF, where the report checked them
- The ebook cover as a JPEG of its own, for KDP's ebook cover upload, copied out of the EPUB where the cover checks measured it
- The report as a PDF and as JSON, and the continuity report
- The disclosure answers, frozen with the pack
- A manifest naming the sha256 checksum of every file
What it costs
What a finished book costs
One credit is one finished book, print and ebook, up to 30,000 words. Without an account, the outline and the first chapter are free. With one, the outline is free and writing the chapters takes the book's credit.
Buying opens at these prices. No card is asked for anywhere on this site.
Paid once
- $191 book
- $453 books
Paid once. Nothing renews, and there is nothing to cancel.
- The interior, the wrap cover with its spine, the back matter and the listing metadata.
- Every export format, and the preflight report that says what was measured against which revision of our recorded KDP specification table.
- Credits that stay yours. No monthly reset and no expiry date.
Studio, monthly
- $29a month3 books a month
Renews every month on the day you started, until you cancel.
- Three credits a month, and anything you do not use rolls over instead of being forfeited.
- The same books, the same exports and the same preflight report as the one-time shape. No feature is held back for the subscription.
The terms: Credits never expire. Unused credits are refundable for 30 days.