Quick answer: A book printing file should be prepared in the format requested for the specific job, usually as a final reviewable PDF with separate cover requirements where applicable. Confirm trim size, page count, bleed, fonts, images, and the proof process before delivery.
What is a print-ready book file?
A print-ready book file is the agreed version of the artwork that can be reviewed and used for production after any required checks. It is more than a file extension: the dimensions, pages, images, fonts, color setup, and cover construction must match the written specification for the order.
Ask for file requirements before exporting
Get the printer’s job-specific requirements before final export. Ask for the interior and cover setup, bleed, safe margin, page-count handling, file naming, and the preferred method of delivery. A generic export preset can be a starting point, but it does not replace the requirements for the actual project.
| File check | What to confirm |
|---|---|
| Document size | Trim size and orientation match the approved specification. |
| Pages | Page count, page order, blanks, and numbering are final. |
| Bleed and margins | Full-bleed artwork extends correctly and live content stays safe. |
| Images and fonts | Images and fonts are embedded or handled as required by the workflow. |
| Cover | Cover, spine, and finishing instructions use the supplied template. |
Use one final checklist so editorial, design, and purchasing teams are reviewing the same version.
Prepare the interior and cover separately when required
The interior and cover can have different setup requirements. The cover may need a spine width, bleed on all sides, barcode placement, or separate finishing instructions. Do not assume the interior-page settings apply to a cover; confirm the supplied template and the current page count before finalizing it.

Run a preflight check before sending files
Preflight is a structured check for potential file issues before export or handoff. Adobe recommends checking links, fonts, bleeds, margins, and Preflight warnings for commercial-print PDFs. Use those checks alongside the printer’s instructions, then ask what the printer will review and what still needs your approval.
Read Adobe’s print-ready PDF guidance and Prikoro’s bleed guide before export.
Use proofing to confirm the final version
A proof is the checkpoint for confirming what is being reviewed before production. Label the revision clearly, consolidate corrections, and approve the version and scope in writing. If a change affects pages, cover, materials, or delivery, request an updated record rather than relying on an earlier approval.

Common file-delivery mistakes
Common mistakes include sending an outdated revision, omitting a blank page, using the wrong cover template, exporting without bleed, or approving a proof without naming the revision. Prevent these by comparing the final file with the quote and maintaining one approval record.
FAQs
Should I send PDF or source files?
Send the format requested by the printer. A final PDF is often used for review and production, while source-file needs depend on the job and workflow.
Do I need separate cover files?
Ask the printer. Covers often require their own template because spine width and finishing can differ from the interior.
What does preflight check?
It helps identify file issues such as fonts, links, colors, images, and layout warnings before export or handoff.
Can the printer fix my files?
Ask what review or correction support is available and how changes will be documented before production.
When is a file final?
A file is final when the approved revision matches the written specification and the required proof step is complete.
Why should I keep an approval record?
It shows which version and scope were reviewed, reducing uncertainty if a question arises later.
How Prikoro can help
Prikoro is a China-based custom printing manufacturer serving publishers, brands, and creators. Share your book type, size, page count, file status, materials, and destination, and the team can clarify the information needed for quoting and proof review. Contact Prikoro with your project details.




