Image grid FAQ: sharpness, order, and sizes
Why tiles look soft, PNG vs JPEG, and when to use 2×2 or 4×4 instead of 3×3.
Start from a high-resolution original and prefer PNG to avoid extra compression.
Always upload left-to-right, top-to-bottom; wrong order breaks the collage.
2×2 / 4×4 / custom grids (2–6) work the same way for other layouts.
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