Preview: Copy image from PDF to clipboard
I know that screen capture (screenshot) would work, but my question is different.
There are PDF documents in which images (JPEG images, etc.) are embedded.
On Acrobat Reader, you right-click on an image and copy it to the clipboard. Then, you create an image file out of the contents of the clipboard, using the "create image from clipboard" feature of GIMP or Preview.
On Preview, you right-click on the image and copy it. But the copied image isn't available to GIMP or Preview in the "create image from clipboard" feature.
Where does Preview copy the image to, then?
Mac mini, macOS 12.3