Publishing tools
Free tools for your next KDP book
Plan a paperback, check your files, draft a listing, or make a sample pattern. Explore each tool here, then create a free account to use it. Full book generation requires a paid plan.
Paperback Size Calculator
Get interior, cover-wrap, spine, and margin measurements for your trim, pages, paper, and bleed settings.
View toolKDP Interior PDF Checker
Check page size consistency, common KDP trim matches, and page count without uploading your PDF.
View toolKDP Cover PDF Size Checker
Compare your one-page cover wrap with the expected size for your trim, paper, and page count.
View toolPrint Image Resolution Checker
See whether a page image has enough pixels for its intended print size. Your file stays in your browser.
View toolKDP Royalty Calculator
Estimate royalties using book price, marketplace, format, page count, and printing cost.
View toolBook Listing Preview
Draft a title, description, and keyword ideas, then see a simple reader-facing preview.
View toolMandala Pattern Maker
Adjust a black-and-white pattern and download a scalable SVG sample without using AI credits.
View toolThese tools provide estimates, drafts, and limited automated checks. Amazon KDP remains the final source for current requirements, printing costs, royalties, and file approval.