From Preflight to Press

Overview

Preflight reports do not print jobs. Operators and planners do. The gap between “PDF has RGB images” and “hold for customer / convert with house profile / proceed” is where shops win or lose schedule reliability.

A healthy handoff translates findings into actions with owners and deadlines. Color conversion might be in-plant and billable. Missing bleed might be a customer reject. A single low-res icon might be a waiver. Without that translation, preflight becomes noise the floor ignores.

This article assumes you already run structured preflight (see the PDF preflight guide). Here the focus is decision quality: which signals block plating, which change the press profile, and which merely annotate the job jacket.

Keep decisions evidence-based. Production Assistant-style inspection notes, page references, and screenshots beat vague “file looks sketchy” commentary when shifts change mid-job.

Step-by-step

1. 1. Triage severity

   Sort findings into hard stops (cannot manufacture as sold), conditional (fixable in plant), and informational. Do not treat every warning as equal.

2. 2. Align with the sold path

   Compare findings to the estimate: sheet size, color count, stock, and finishing. A spot color in a 4-color job is a commercial decision, not only a technical one.

3. 3. Choose fix ownership

   Customer fix, prepress fix, or proceed with waiver. Record who approved conversion or risk. Unowned fixes stall schedulers.

4. 4. Select press and finishing profile

   Use cleaned findings to confirm the job still fits the intended press profile. Coverage, size, and stock issues may force a reroute — see choosing a press profile and mismatch signals.

5. 5. Brief the operator

   Pass forward only what changes the run: special overprint handling, fragile solids, coating holds, or known soft images under waiver. Avoid dumping raw preflight PDFs without a summary.

6. 6. Close the loop after first sheets

   If press checks reveal an issue preflight missed, update the intake profile. Preflight rules should learn from floor escapes.

Common mistakes

• Passing files with unresolved hard stops. “We’ll watch it on press” is not a plan for missing fonts or wrong trim. Stop early.
• Silent in-plant conversions. Converting spots or RGB without noting it makes reprints impossible to match. Document conversions.
• Over-briefing operators. A 40-item warning list hides the two items that matter on press. Summarize actions.