Re: png & zlib

On Mar 26, 2:52 pm, byaa...@xxxxxxxxx wrote:
I suppose then that zlib is sort of always used with PNG files then?

The deflate compressed format is (so far) the only allowed
compression, and must always be used for an IDAT chunk. You can use
any compliant deflator, though there are examples of PNG files where a
*non*-compliant deflator was used. Still, most of the time zlib is
the deflator of choice.

Mark

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