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Re: .png images getting corrupted?
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Re: .png images getting corrupted?


  • Subject: Re: .png images getting corrupted?
  • From: Jens Ayton <email@hidden>
  • Date: Mon, 12 Apr 2010 20:58:24 +0200

On Apr 12, 2010, at 15:44, Patrick Mau wrote:
>
> Hi
>
> Just FYI I think that the utility used while copying resources on the iPhone platform is "pngcrush".
>
> It's located in
>
> /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/pngcrush
>
> It tries to remove unnecessarry chunks and recompresses the image data.
> I would not use it unless you absolutely need to preserve space.
> Some programs cannot handle these stripped-down images.

That's somewhat misleading. The files created by the iPhone SDK version of pngcrush are not valid PNGs, although they do use the high-level structure of PNGs and misappropriate the PNG file header. Applications that don't open them aren't failing to handle them, they're correctly rejecting files that have been deliberately corrupted.


--
Jens Ayton

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References: 
 >.png images getting corrupted? (From: Rick Mann <email@hidden>)
 >Re: .png images getting corrupted? (From: Steve Christensen <email@hidden>)
 >Re: .png images getting corrupted? (From: Patrick Mau <email@hidden>)

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