Use a high-quality photo. The image is rendered at print resolution, so a sharp source picture makes for a sharp card. Portrait-orientation photos tend to fit the card frame naturally.

Position the photo with drag & zoom. The photo frame shows exactly what will end up on the card. Drag to re-center, zoom in to crop tighter — the key subject (face, jersey number, action shot) should land in the middle third for best composition.

Print on card stock. The PDF is sized so a single US Letter sheet holds four identical cards in a 2×2 grid. Print on the thickest "board" your printer can handle (60–100 lb card stock is typical) and cut along the gutter.

Team color & branding. Pick a team color for the accent strip and jersey-info line. Keep the team name short (under 20 characters) so it doesn't get truncated.