How can I create highly optimized PNG images?

TexturePacker includes a powerful PNG optimizer that can significantly reduce file sizes without requiring external tools.

Lossless optimization - Reduces file size without changing image quality by using advanced compression algorithms
Lossy optimization - Converts to indexed PNG (256 colors) for much smaller files with minimal visible quality loss

For a detailed guide with examples and file size comparisons, see A beginner's guide to lossless and lossy PNG optimization.