Get-ImageInformation

Using the function

Get-ImageInformation -FilePath c:\test\image.png

Output example

Tag                  :
PhysicalDimension    : {Width=301, Height=308}
Size                 : {Width=301, Height=308}
Width                : 301
Height               : 308
HorizontalResolution : 96
VerticalResolution   : 96
Flags                : 77840
RawFormat            : [ImageFormat: b96b3cae-0728-11d3-9d7b-0000f81ef32e]
PixelFormat          : Format24bppRgb
Palette              : System.Drawing.Imaging.ColorPalette
FrameDimensionsList  : {7462dc86-6180-4c7e-8e3f-ee7333a7a483}
PropertyIdList       : {305, 36864, 40962, 40963...}
PropertyItems        : {305, 36864, 40962, 40963...}