Le 4 déc. 08 à 22:18, I. Savant a écrit :

On Thu, Dec 4, 2008 at 4:12 PM, Randall Meadows <[EMAIL PROTECTED] pc.com> wrote:

To throw another monkey wrench into your conclusion, I opened it in PS CS3, and it looked just fine. I did save from Preview as a PNG, dunno if format
(or version) makes a difference.

 Further experimentation at Mike Ash's urging reveals that it is only
with TIFFs with alpha. I'll go out on a limb and theorize that it's
specifically TIFFs with alpha created by Mac OS X's machinery that has
this affect, though that theory is untested.

 Yes, it works just fine with PNGs.

This is a very old and well known issus.

http://www.wodeveloper.com/omniLists/macosx-dev/2002/September/msg00251.html


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