When working with selections, you may have access to the following Modes which affect how your selection develops:
New—cancels all current selections and creates a new selection.
Add—adds areas to the current selection. If there is no selection in place, a new selection will be created.
Subtract—removes areas from the current selection.
Intersect—a new selection area is created from the overlap between the newly added selection area and the current selection.
To select every pixel in the image:
From the Pixel Persona, do one of the following:
Hold one finger down on the screen, then release it and select Select all from the pop-up menu.
From the Edit menu, select the same option.
To invert, deselect or reselect, use the same procedure as above. You can also deselect by tapping the Deselect icon at the bottom left of the workspace.
To select every pixel in the image: