Answers for Amazon KDP publishers: RodBooks plans, credits vs book quotas, PDF exports, trim and bleed, Polar billing, refunds, commercial use, and troubleshooting.
RodBooks is built for Amazon KDP publishers who ship puzzle and low-content books, word searches, crosswords, sudoku, mazes and mixed activity volumes. This page answers common questions about plans, credits, PDF exports, trim and bleed, Polar billing, commercial licensing and troubleshooting.
Public landing pages at /tool/* explain each generator and research tool; the signed-in studio at /tools/* is where you create books, spend research credits and download interiors. Compare limits on pricing or contact support for account-specific help.
RodBooks is an all-in-one toolkit for Amazon KDP publishers. It combines puzzle generators, niche research, listing copy tools, cover design helpers and royalty calculators in one dashboard so you can move from keyword research to a print-ready PDF without juggling separate apps.
RodBooks includes puzzle generators (word search, crossword, sudoku, maze), research tools (niche finder, keyword research, competition analyzer, category finder), listing tools (title, description, backend keywords, A+ content blueprint), and utilities like the royalty calculator. Each tool has a public page under /tool/ and an in-app version under /tools/.
No. The Free plan gives you 10 credits and 3 books every calendar month with no card required. That is enough to test niche research, generate a small puzzle interior and export a sample PDF. Upgrade when you need higher quotas or commercial publishing rights.
Public /tool/ URLs are SEO landing pages that explain each tool with examples and guides, no login required. The /tools/ routes live inside your signed-in dashboard where you configure puzzles, consume credits on research actions, save book projects and download PDF exports.
Free: 10 credits, 3 books per month, up to 10 puzzles per book, personal evaluation only. Pro ($29/mo or $249/yr): 100 credits, 5 books, up to 80 puzzles per book, full commercial license. Business ($59/mo or $499/yr): 200 credits, 10 books, unlimited puzzles per book, full commercial license. All quotas reset on the 1st of each calendar month.
Credits pay for research and strategy actions, keyword lookups, niche scoring, title and description generation, competition analysis and similar AI-assisted workflows. Each tool displays its credit cost before you run it. Puzzle generation, layout editing and PDF export do not consume credits.
Book quotas limit how many complete puzzle book projects you can create and export each month. A book is a saved project with its own puzzle set, layout settings and PDF export. Free allows 3 books with up to 10 puzzles each; Pro allows 5 books with up to 80 puzzles; Business allows 10 books with no puzzle cap.
No. Both credits and book quotas reset on the 1st of each calendar month. Unused credits and unused book slots do not carry forward.
Yes. Upgrade, downgrade or switch billing intervals from the Polar customer portal linked in your RodBooks billing settings. Upgrades take effect immediately with prorated charges. Downgrades apply at the end of the current billing period.
RodBooks exports print-ready PDF interiors at 300 DPI, formatted for Amazon KDP upload. The file includes puzzle pages, solution section, optional title page and page numbers according to your layout settings. Upload directly as the manuscript/interior file in KDP.
Common KDP trim sizes, including 8.5×11 inch, 8×10 inch, 6×9 inch and large-print variants, are available in each puzzle generator layout designer. Margins follow KDP interior guidelines. Enable bleed in the export panel when KDP requires it (standard 0.125 inch extension). Always proof with KDP Preview before publishing.
Yes. Every puzzle generation creates fresh word lists, grid placements, sudoku boards, maze paths and clue layouts based on your inputs and random seeds. RodBooks does not resell or reuse content generated for one customer in another account.
Sign in, open a generator like the word search generator in the app, configure puzzles and layout, then click Download PDF. Upload the file as your KDP interior. Use the royalty calculator to check print cost and list price before publishing.
All RodBooks subscriptions are billed securely through Polar. Polar handles checkout, invoicing, tax where applicable, and the self-service cancellation portal. RodBooks never sees or stores your full card number.
Invoices and receipts come from Polar, not RodBooks. Plan changes and cancellations happen in the Polar customer portal linked from RodBooks billing settings. If a charge fails, Polar retries automatically, update your card in the portal to avoid interruption. Annual subscriptions renew once per year on your signup anniversary.
Yes, a 15-day money-back guarantee applies to your first paid subscription. You qualify if you request within 15 days of the initial charge, have not generated any book project, and have used 5 credits or fewer. Email support@rodbooks.com with your Polar order ID.
Open billing settings in RodBooks and click through to the Polar customer portal, then select Cancel subscription. You retain paid plan access until the end of the current billing period. No further charges occur after cancellation.
On a paid Pro or Business plan, every puzzle, listing, cover blueprint and PDF you generate is yours to publish and sell on Amazon KDP and other marketplaces. The Free plan is for personal evaluation only, you may test tools and preview exports, but you may not publish or sell books created on Free.
Yes. Word lists, grid placements, sudoku boards, maze paths and crossword clues are generated per request from your inputs and internal seeds. Two publishers choosing the same theme receive different arrangements.
No. RodBooks is an independent SaaS product. We are not endorsed, sponsored or affiliated with Amazon, Kindle Direct Publishing or any Amazon service.
Blank or partial outputs usually mean the generation provider timed out, common on very large books or during peak load. Retry the generation; if the result is empty, credits are not deducted for that failed run. If it persists, contact support with the tool name, book ID and a screenshot.
Open the layout designer and confirm trim size matches your KDP paperback settings exactly. Enable bleed only if your KDP template requires it. Regenerate the PDF after changes. Compare against KDP Print Previewer before ordering proofs.
Visit support to send a ticket with your account email, plan tier, tool name and screenshots. Browse pricing for plan comparisons or the blog for KDP publishing guides.
These public landing pages explain the workflow before you create an account.