Format: PDF or image files (PNG/JPG) – 8.5″ x 11″ letter size Colors: Grayscale / Black line art only (no color ink needed) Card size: 2.5″ x 3.5″ (standard playing card) – 9 cards per page (3×3 grid) Card Types & Symbols (B&W designs) Each card uses shape outlines + bold text to replace colors: