Declaration
property PNG_Filter: TIOPNGFilter;
Description
Specifies the filter to use when saving a PNG file. PNG filters can have a significant impact on the file size and encoding (i.e. saving) speed, though, generally the effect on the decoding/loading speed is minimal.
Default: ioPNG_FILTER_NONE
// Set best compression
ImageEnView1.IO.Params.PNG_Filter := ioPNG_FILTER_PAETH;
ImageEnView1.IO.Params.PNG_Compression := 9;
// Save PNG
ImageEnView1.IO.SaveToFilePNG('D:\max.png');