Specifies the available values for PDFStandardLayoutAttribute.setPlacement method.

Placed so that the before edge of the element's allocation rectangle coincides with that of the nearest enclosing reference area.

Stacked in the block-progression direction within an enclosing reference area or parent.

Placed so that the end edge of the element's allocation rectangle coincides with that of the nearest enclosing reference area.

Packed in the inline-progression direction.

Placed so that the start edge of the element's allocation rectangle coincides with that of the nearest enclosing reference area.