Image.RemovePropertyItem Method (Int32)
Removes the specified property item from this Image.
Assembly: System.Drawing (in System.Drawing.dll)
The image does not contain the requested property item.
The image format for this image does not support property items.
It is difficult to set property items, because the PropertyItem class has no public constructors. One way to work around this restriction is to obtain a PropertyItem by retrieving the PropertyItems property value or calling the GetPropertyItem method of an Image that already has property items. Then you can set the fields of the PropertyItem and pass it to SetPropertyItem.
Available since 1.1