Learn exactly what artwork files you need for custom pins, including vector AI, EPS, SVG, and print-ready PDF requirements. This expert guide explains Pantone color matching, text outlines, metal-line thickness, enamel area limits, plating specifications, and file preparation for soft enamel, hard enamel, die-struck, and printed pins. Use XingKun’s practical artwork checklist to reduce revisions, avoid production errors, and prepare your custom enamel pins, lapel pins, and branded badges for accurate OEM/ODM manufacturing.