Png​Filter​Mode Png​Filter​Mode Png​Filter​Mode Enum


Specifies the filter used to optimize the image prior to image compression in PNG images.

public enum PngFilterModepublic enum PngFilterModePublic Enum PngFilterMode
Windows 10 requirements
Device family
Windows 10 (introduced v10.0.10240.0)
API contract
Windows.Foundation.UniversalApiContract (introduced v1)


The PNG filter modes only affect compression efficiency and not image quality. None does not perform any filtering and is typically the fastest but consumes the most space. Sub, Up, Average and Paeth filtering perform differently across various images. Adaptive filtering attempts to select the most efficient of the previous filter modes for each scanline in the image. This typically performs the slowest but consumes the least space.


Adaptive Adaptive Adaptive

The Adaptive type filter is applied.

Automatic Automatic Automatic

The filter type will be chosen automatically.

Average Average Average

The Average type filter is applied.

None None None

The image is unmodified.

Paeth Paeth Paeth

The Paeth type filter is applied.

Sub Sub Sub

The Sub type filter is applied.

Up Up Up

The Up filter type is applied.