Where can I get `pngcrush` tool optimizes images for iOS and runnable on Linux server?

iOS uses a variant of PNG processed a tool called pngcrush. If I want to optimized the ima开发者_高级运维ges on Linux server, how can I do it?

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Ignore it, iOS-specific changes don't improve performance. Use regular pngcrush or PNGOUT, AdvPNG.

Although ImageOptim (linked above) doesn't work on Linux, there's a very similar script for Linux.

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This tool is named pincrush.