Can I use the same PDF on KDP, IngramSpark, and Books.by?

Usually yes for standard paperback interiors. If the PDF has correct trim size, margins, embedded fonts, and print-resolution images, the same interior PDF can often be uploaded to all three platforms.

Do text-only books need bleed?

Usually no. Bleed is only needed when images, backgrounds, or design elements reach the edge of the page.

What causes most print PDF rejections?

Common causes include wrong page size, missing fonts, low-resolution images, content inside the trim or gutter danger zone, and cover files with the wrong spine width.

Print file preparation

How to Prepare Print-Ready PDFs for KDP, IngramSpark, and Books.by

Your PDF is the manufacturing file for the book. Get the trim, margins, bleed, fonts, and images right once, and you can move between platforms without rebuilding the book.

300 DPIRecommended image resolution

0.125 inStandard bleed when needed

PDFAccepted print interior format

1 sizePage size must match trim

Upload rule

A print-ready PDF is not just a Word export.

It is a locked production file with correct page geometry, embedded fonts, high-resolution art, safe margins, and no surprises for the printer.

Readiness checker

Tick what is true for your file. Use the score as a practical preflight signal before uploading.

Page size matches the chosen trim size exactly. Fonts are embedded in the exported PDF. Images are 300 DPI at printed size. Inside gutter is wide enough for the page count. Bleed is included only where edge-to-edge artwork exists. Page count is even and blank pages are intentional. Cover PDF uses the platform's spine width template. Final proof has been reviewed at 100% zoom.

Readiness score0%Not ready yet

Interior

Set trim before layout

Changing trim size after formatting changes line breaks, page count, spine width, and cover template. Choose first, then format.

Margins

Respect the gutter

The inside margin disappears into the binding. Books over 400 pages need more gutter than short paperbacks.

Cover

Spine width is calculated

Cover PDFs depend on page count, paper type, binding, and trim. Recalculate the template after file changes.

Check	KDP	IngramSpark	Books.by
Interior PDF	Print-ready PDF	Print-ready PDF	Print-ready PDF
Cover	Separate full-wrap cover PDF	Separate full-wrap cover PDF	Upload cover PDF or use cover tools where supported
ISBN barcode	Can place automatically if using KDP ISBN	Requires correct barcode placement	Barcode support with Books.by ISBN flow
Revisions	Allowed	May involve revision fees depending on account/program	Upload updated assets in your book setup