About this tool

Design tools help centre

Find guidance for book calculators, planning worksheets and design tools. Understand estimates, settings and exports before preparing your project.

Use the help centre to understand the tools and their production assumptions. Return to the relevant calculator or design tool when you are ready to apply the guidance to your project.

How to use this tool

  1. Find the section for the tool or publishing question you need help with.
  2. Review the guidance alongside the specifications for your own project.
  3. Return to the tool to adjust settings, review results or export your work.

Tool guidance does not replace printer specifications, professional accessibility testing or legal advice.