Interior Generator
12 templates: wide and college ruled, dot grid, graph, blank, daily and weekly planners, habit tracker, gratitude journal, reading, password and expense logs. Automatic gutter, live preview, KDP Check and vector PDF export.
Print-ready book tools for KDP sellers
Make notebook, journal and planner interiors, and get exact cover and spine sizes. Everything runs in your browser. No sign-up, and your files never leave your device.
Tools
Cover Size & Spine Calculator
Full cover width and height, spine width for white, cream and colour paper, safe zones, and a blank cover template as PDF and PNG.
Coloring Book Builder Coming soon
Place your own line art on print-size pages with optional blank backs and a 300 DPI check.
Kids Worksheet Generator Coming soon
Letter and number tracing and simple maths sheets for print books and printables.
Why SellerKitWorks
- Private by design: no uploads, no accounts, no cookies.
- Official numbers: margins and sizes follow the published KDP paperback guidelines.
- Print-ready output: vector lines (0.75 pt minimum), embedded fonts and exact page sizes.
FAQ
Is it free?
Yes. The tools run in your browser and there is no account or sign-up.
Are my files uploaded?
No. PDFs and images are generated on your own device. Nothing is sent to a server.
Where do the print specifications come from?
Trim sizes, margins, bleed, page limits and spine formulas are taken from the official Kindle Direct Publishing help pages. Each tool page links its sources.
Is this an official Amazon tool?
No. SellerKitWorks is independent and is not affiliated with or endorsed by Amazon. Always preview your files in the publishing platform and order a proof.