KDP formatting software

KDP-oriented formatting checks for paperback books and PDF drafts.

InkVault helps writers prepare book projects for Amazon KDP-style paperback workflows with trim size choices, margins, gutters, image checks, cover warnings, PDF proofing and export preflight.

Print upload readiness

Find common formatting problems before the publishing platform does.

KDP upload errors often come from practical paperback layout details: margins, gutters, cover dimensions, page count, image resolution or missing book structure. InkVault surfaces those issues during the export workflow so they can be corrected while the project is still editable.

  • Popular KDP paperback and print trim sizes.
  • Automatic and manual margin controls, including inside gutter handling.
  • PDF proof generation using the real publishing engine.
  • Warnings for cover state, cover ratio, heavy images and missing optimized variants.

KDP-oriented checks

  • Trim size support and page geometry.
  • Estimated and real page count checks.
  • Minimum gutter and outside margin warnings.
  • Full-page and full-bleed image consistency checks.

Before PDF export

Preflight for book formatting and print production.

Paperback trim sizes

Choose paperback and print sizes and review page geometry before generating a PDF proof.

Margins and gutters

Check inside, outside, top and bottom margins against the selected print format.

Book structure

Review missing chapters, front matter, back matter and duplicate ordering problems.

Cover checks

Surface missing cover, undersized cover and cover aspect-ratio mismatch warnings.

Image checks

Find missing, heavy, unused, non-recommended or low-resolution images before export.

PDF proofs

Generate paperback PDF drafts and check tool availability in the local export environment.

FAQ

KDP formatting questions

Does InkVault format paperback books for Amazon KDP?

InkVault includes KDP-oriented paperback layout checks for trim size, margins, gutters, page count, cover state, images and PDF generation. Final upload approval remains Amazon KDP’s responsibility.

Can InkVault check paperback margins and gutters?

Yes. InkVault includes automatic and manual margin controls, including inside gutter handling and warnings for common print layout issues.

Does InkVault generate PDF proofs?

Yes. InkVault can generate PDF drafts using the local export environment so layout issues can be reviewed before publishing files are uploaded.

Prepare KDP-oriented paperback files with fewer late surprises.

InkVault catches common layout and export problems before you commit to a publishing file.

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