It looks like "No filters" produces the same result as "All filters".
Should be different things.
Export to PNG
Moderators: helmut, XnTriq, xnview
Re: Export to PNG
PNG is a lossless format so you wont be seeing any image quality difference when changing the filter method, but the file size should be different. Those filters are used to... "to prepare the image data for optimum compression."
Read more about the filters:
http://www.w3.org/TR/PNG-Filters.html
Read more about the filters:
http://www.w3.org/TR/PNG-Filters.html
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