Flutter web context menu copy image

I need a help on Flutter web. When we want to copy a text from an flutter app and paste it in word, we can use SelectableText and using the right click, we can copy and we can paste it anywhere. In the sameway I need to copy an image widget and paste in word. In other websites when we right click an image we can see copy image option in the context menu, but we cannot find that option in the website we developed in flutter.

In simple we want to copy an image from our flutter app by right clicking it and paste in word.