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No, PNG says that some chunks should be preserved, if they are marked to be preserved.
However, we have found that most chunks are mismarked for preservation, or not marked for preservation at all (when they should be). Plus, some applications will have problems with chunks that were preserved (because they were marked to be preserved) and really should not have been preserved.
So, to prevent problems with other applications, Photoshop does not preserve unknown chunks.
However, we have found that most chunks are mismarked for preservation, or not marked for preservation at all (when they should be). Plus, some applications will have problems with chunks that were preserved (because they were marked to be preserved) and really should not have been preserved.
So, to prevent problems with other applications, Photoshop does not preserve unknown chunks.
How to Master Sharpening in Photoshop
Give your photos a professional finish with sharpening in Photoshop. Learn to enhance details, create contrast, and prepare your images for print, web, and social media.
