One click. Any KDP trim size.
Your finished manuscript reflows to 5×8, 6×9, 8.25×11 or 8.5×11 with correct margins, gutters and page count — paperback or hardcover. No fiddling with templates.
Issue 012026 · The AI Author Edition
Publish on Amazon KDP. In an afternoon.
The cinematic writing studio for Kindle Direct Publishing. Plan chapters, draft pages with GPT-5, convert your cover to any KDP trim with the right bleed and spine, and export the print-ready PDF and Kindle-ready EPUB — all in one place.
5×8, 6×9, 8.25×11, 8.5×11 Paperback & hardcover Print-ready PDF + EPUB Bring your own OpenAI key
AI that drafts whole chapters in your voice.
GPT-5 streams pages into the editor, keeping the outline tight as the book grows. Spell check, hyphenation and reading-level hints are built in.
Convert any cover. Any trim. Any binding.
Drop in your existing cover and the Cover Converter recomputes spine from page count and paper, re-flows bleed and barcode reserve, and exports a 300 DPI wraparound matched to the latest KDP template.
Print-ready PDF and Kindle-ready EPUB. Validated.
Every export is preflighted against current Amazon KDP specs — page count, spine, bleed, barcode and EPUB structure. If something would be rejected, you'll know before you upload.
The workflow
From idea to KDP upload — four scenes.
STEP 01
Brief
One sentence on your book. The planner returns title, subtitle, chapters and a page map.
STEP 02
Draft
Stream chapters with GPT-5 and edit page-by-page in the manuscript editor.
STEP 03
Convert
Pick a trim, run the Cover Converter for a new size or binding, place illustrations, set EPUB metadata.
STEP 04
Export
Download the print-ready PDF and Kindle-ready EPUB. Upload to Amazon KDP.
Everything in the studio
A complete Amazon KDP workflow, end to end.
Every tool a self-published author needs — manuscript planning, AI drafting, illustrations, cover conversion and spec guidance, EPUB metadata, KDP preflight, exports — in one cinematic studio.
GPT-5 chapter planner
From a single idea to title, subtitle, chapter plan and a page-by-page map of your whole book.
Streaming manuscript drafting
Draft every page with AI in your voice, edit inline, and keep a tight outline as the book grows.
1-click KDP trim conversion
Reflow your finished manuscript to any KDP trim size — 5x8, 6x9, 8.25x11, 8.5x11 — in one click.
Cover Converter
Convert any cover to a new KDP trim, or switch between paperback and hardcover. Spine, bleed and barcode reserve are recomputed automatically.
Perfect-cover guidance
Built-in specs and checklist — bleed, spine math, safe zones, barcode reserve, hardcover hinge — so the cover you design passes KDP on the first upload.
Paperback & hardcover
Converter outputs validated wraparound files for both bindings, matched to the latest Amazon KDP cover template.
Print-ready PDF export
300 DPI interior PDF with embedded fonts, correct trim and bleed — upload straight to KDP.
Validated EPUB for Kindle
Reflowable EPUB with cover, metadata, TOC and accessibility hooks. Passes EPUB validation.
Spell check & reader aids
Per-language spell checking, hyphenation and reading-level hints baked into the editor.
Template gallery
Fiction, nonfiction, children's, coloring, journal and activity templates with the right defaults.
Bring your own OpenAI key
Pay AI wholesale. Your key is encrypted at rest and never reaches the browser.
KDP preflight checks
Every export is validated against the current KDP specs — page count, spine, bleed, barcode and more.
Every KDP trim size, supported. Reflow between them in one click.
5 × 8 in6 × 9 in8.25 × 11 in8.5 × 11 inWhite & cream paperPaperback & hardcover
Frequently asked
Everything authors ask before they publish on KDP.
What is Amazon KDP and how do I publish a book on it?+
Amazon KDP (Kindle Direct Publishing) is Amazon's self-publishing platform for paperback, hardcover and Kindle books. KDP Book Writing Studio writes your manuscript with AI, formats it to KDP's exact trim and bleed specs, and exports the print-ready interior PDF and reflowable EPUB you upload to KDP — usually in one afternoon.
Can I write a whole book with AI for Amazon KDP?+
Yes. Describe your idea and our GPT-5 planner returns a title, subtitle, chapter plan and page-by-page map. You then stream full chapters, edit inline, and keep the outline tight. The result is a KDP-compliant manuscript ready for paperback, hardcover or Kindle.
Which KDP trim sizes are supported?+
All major Amazon KDP trim sizes are supported out of the box — 5x8, 6x9, 8.25x11 and 8.5x11 — on both white and cream paper. One click reflows your manuscript to any of them with correct margins, gutters and page counts.
Can I resize my cover for different KDP trims or paperback vs hardcover?+
Yes — that's exactly what the Cover Converter does. Upload your existing front, back or full wraparound, pick a target KDP trim (5x8, 6x9, 8.25x11, 8.5x11) and binding (paperback or hardcover), and the converter recomputes the spine width from your page count and paper, re-flows the 0.125" bleed, and re-reserves the 2x1.2" barcode area. Output is a 300 DPI wraparound that matches Amazon's latest KDP cover template. We don't generate cover artwork for you — we convert and validate the cover you already have, and our specs guide helps you design the perfect one.
Can I export print-ready PDF and EPUB?+
Every project exports a print-ready interior PDF (PDF/X-style, embedded fonts, correct trim) and a validated reflowable EPUB with cover, metadata and table of contents — both upload-ready to Amazon KDP.
Do I need my own OpenAI API key?+
Yes — bring your own OpenAI key and pay wholesale AI costs directly. Your key is encrypted at rest, decrypted only on our server, and never exposed to the browser. We charge a flat $19.99 / month for the studio itself.
Can I make children's books, coloring books or low-content books?+
Yes. The studio ships with templates for fiction, nonfiction, children's books, coloring books, journals and activity books — each with the right page count rules, illustration pipeline and cover-spec guidance for that KDP category.
Is the output really KDP-compliant?+
We validate every export against current KDP specifications — minimum and maximum page count by trim and paper, spine-text gate, hardcover hinge allowance, bleed, safe zones and barcode reserve. If something would be rejected by KDP, the preflight check flags it before you upload.