You can regard the content selection tool as a snapshot tool. The selected contents are allowed to be copied or saved as an image. Follow the steps to choose the content you want.
1. Click Tools on the toolbar -> hit Content Selection Tool ;
2. Drag a rectangle around the content you want to choose;
3. Tap Done/ Exit/ Output/ Print/ Undo.
ㆍ Done: copy the content you choose.
ㆍ Exit: cancel the selection.
ㆍ Output: save the content as a JPG or PNG image.
ㆍ Print: print the content.
ㆍ Undo: Re-select the content.