Comments on: Fixing PNGs

By: Chris Lindley

Chris Lindley — Fri, 08 Jun 2012 12:22:15 +0000

…. a clue to a forthcoming reason to buy an iPad?

By: Clark

Clark — Mon, 04 Jun 2012 20:46:40 +0000

Got to agree with Jens. Apple should have used a different extension for these files. I don’t understand why they didn’t.

By: Tom Harrington

Tom Harrington — Sat, 02 Jun 2012 21:54:24 +0000

For those who use bash instead of zsh, I wrote an alternate version of the fixing and fixings functions, which are available at https://gist.github.com/2855867

By: Michael Tsai - Blog - Reverting Apple’s “PNG’s”

Michael Tsai - Blog - Reverting Apple’s “PNG’s” — Fri, 01 Jun 2012 20:00:56 +0000

[...] Daniel Jalkut: Essentially, the authors of this tool figured out the optimizations that Apple were doing, and reversed the steps to convert them back into standard PNG images. The tool relied upon a compiled-in version of the libpng library. [...]

By: Red Sweater Blog – Fixing PNGs « Carsten Schabacker

Red Sweater Blog – Fixing PNGs « Carsten Schabacker — Fri, 01 Jun 2012 19:22:30 +0000

[...] Via Red Sweater Blog – Fixing PNGs. Posted Friday, June 1st, 2012 (6 minutes ago) under Tools. [...]

By: Jens Ayton

Jens Ayton — Fri, 01 Jun 2012 19:00:22 +0000

The reason most PNG images in iOS apps are not viewable is because Apple applies special, non-standard optimizations

This is true in a technical sense, but a more accurate description of the issue is that they are not PNGs despite using a PNG header and similar file structure and purloining the .png extension. The PNG specification has very specific conformance requirements specifically to avoid incompatible variants popping up, and disguising the iPhone-optimized pictures as PNGs is a downright Microsoftishly destructive thing to do.

By: Dan Studnicky

Dan Studnicky — Fri, 01 Jun 2012 18:39:06 +0000

…Tell us more about this “Marsedit Touch” thing.