A page-layout file is the editable working document, not automatically the print deliverable. Modern production is usually PDF-first: maintain a clean native source, preflight it, then export a PDF using the printer’s requested standard and settings.
The files that matter
| File | Role | Send it when… |
|---|---|---|
InDesign .indd | Editable source document | The printer or collaborator specifically requests native files. |
InDesign .idml | Interchange copy for compatible workflows | A different application/version needs an exchange format. |
InDesign Book .indb | Controls multi-document book projects | The receiving workflow needs the complete book structure. |
| PDF / PDF/X | Final, portable production deliverable | The printer requests a press-ready PDF. |
| Packaged folder | Native document, links, fonts where permitted and report | A native-file workflow has been agreed in advance. |
Why PDF is usually the handoff
A correctly exported PDF carries the assembled layout, embedded or subset fonts where licence permits, vector artwork and image data in one controlled file. PDF/X standards add production constraints and an output intent so that the file is easier to validate downstream. The right flavour is the one named by the printer—not simply the newest preset in an application.
Package only on request
Packaging collects the layout document, linked assets, font information where permitted and a report. It is useful for collaborative or legacy workflows, but it can introduce missing-link, version and font-licence problems. Never assume that sending a package removes the need for an exported PDF proof.
Handoff checklist
- Use a final, versioned source document and collect only approved assets.
- Resolve missing links, overset text and preflight errors.
- Export the requested PDF/X or PDF preset with the correct bleed and output settings.
- Inspect the PDF in output preview for page size, separations, spot colours and overprint.
- Send a short job note covering stock, finishing, quantity and proof requirements.