Pipeline

How VidBook turns a YouTube video into a KDP-ready book in 6 steps.

Six agents, each with one job, working off your transcript. Total time from URL to uploadable PDF: typically 6 to 10 minutes for a 7-chapter book.

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Step 01
Paste a YouTube URL
VidBook pulls the transcript, falls back to a Whisper-style extractor when captions are missing, and scores the video for book potential. You see the title, channel, duration, and estimated page count before you spend a single credit.
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Step 02
Transcript becomes a structure
We chunk the transcript semantically, then an architect agent maps it into chapters, objectives, and a Quick Wins block. The outline is editable before you commit, so you can rename chapters, drop sections, or reorder before generation starts.
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Step 03
Outline and chapters get drafted
Each chapter is written by Gemini 2.5 Pro, threaded with continuity summaries from prior chapters and grounded only in the source transcript. This prevents the hallucinated facts and contradictions you get from one-shot prompting in ChatGPT or Claude.
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Step 04
Developmental edit pass
The refiner agent scores each chapter for hook, reader value, actionability, and AI tells. Weak chapters are auto-rewritten and a 30+ pattern humanizer removes the giveaways (em dashes, hedge words, generic transitions) so the manuscript reads like a human wrote it.
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Step 05
Polish in the inline editor
Rewrite any selection with Gemini Flash Lite in 2 seconds. Tighten, sharpen, or shift register. The result still respects the no-em-dash, no-markdown rule that keeps Kindle and KDP renderers happy.
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Step 06
Export to KDP
One click renders PDF, EPUB, and DOCX. Upload the PDF straight to Amazon KDP. Margins, gutter spacing, mirrored layouts, and folios are already correct for a 6×9 paperback. The EPUB works in Apple Books, Google Play Books, and Kobo.