KDP Ready

Free KDP tool

Safe-Zone Fixer

Free to use, no sign-in needed. Fix trim and safe-area problems without rebuilding your book. Safe-Zone Fixer adjusts the whole page without changing the page size, and your file never leaves your device.

Why am I seeing a KDP error?

Amazon KDP may flag a print file when important content such as text, badges, logos or graphics sits too close to the trim or margin area. Backgrounds meant to bleed to the edge can go past the trim line, but important content must stay inside the safe area. Shrink the page slightly here, then upload the corrected PDF back into KDP Print Previewer.

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Need your whole book KDP ready?

The Complete PDF to KDP converter sets your trim size, bleed, margins, resolution, spine width and full-wrap cover for you.

See the KDP Converter

Terms of use

  • Your PDF is processed in your browser. It is not uploaded to or stored on our servers.
  • "Save Changes" keeps your adjustments on this device only, so you can carry on later by opening the same PDF.
  • We ask for your email address before you download your corrected PDF, so we can send you KDP formatting help.
  • Once you have saved your corrected PDF, use "I have saved my PDF — now delete" to clear the file and saved changes.
  • You must own or have the rights to any file you upload.
  • The fixer helps with trim and safe-area issues but cannot guarantee Amazon KDP will accept your file. Always check it in KDP Print Previewer before publishing.
  • KDP Ready does not publish books on your behalf and is not affiliated with Amazon.