Blog · Prepress Guide

Print-Ready Artwork: CMYK, Bleed, DPI & File Formats

2026-05-19 · Written by McLantis Packaging Engineers

Print-Ready Artwork: CMYK, Bleed, DPI & File Formats

Bad artwork is the #1 cause of reprints and delays. A file that looks perfect on screen can print with dull colour, blurry text or a white edge. This guide sets the specs that pass first time at a commercial printer.

Spec checklist

SettingCorrectWrong
Colour modeCMYKRGB
Resolution300 dpi72 dpi
Bleed3 mm all sides0 mm
FontsOutlined / embeddedSystem fonts
FilePDF/X-4Word, JPG

Choose your format

FormatUse when
PDF/X-4Final print file (best)
AI / EPSEditable vector source
PSD / TIFFLayered photo artwork
IDMLInDesign exchange

Expert tips

  • Convert to CMYK before export. RGB blues and greens shift on press; convert early to preview true colour.
  • Add 3 mm bleed, not 0. Any element touching the edge needs bleed or you get a white strip.
  • Outline your fonts. Embedded fonts occasionally fail; outlined text never does.
  • Embed ICC profile. We print to GRACoL / FOGRA so colour matches your proof.

Four-step handoff

  1. Build at 300 dpi in CMYK with 3 mm bleed.
  2. Outline fonts and embed the ICC profile (GRACoL / FOGRA).
  3. Export PDF/X-4; keep the AI/EPS source as backup.
  4. Upload with specs for a free quote; we preflight and confirm within 24h.

Get a free quote

McLantis Printing & Packaging Group has printed custom jobs since 1976 with ISO 9001 colour control, shipping worldwide from Shanghai. Send your PDF/X-4 and we preflight it free and return a firm quote within 24 hours.

← Blog