SignatureLayout

"""Layer-based geometry specification for a single folded signature"""
type SignatureLayout {
  """Measurement unit for all numeric values"""
  unit: LayoutUnit!
  """Finished (folded) size of the signature"""
  trimBox: LayoutBox!
  """Bleed extending beyond the trim box edges"""
  bleed: BleedSpec!
  """Semantic layers: content area, fold lines (crease), and press marks"""
  layers: [LayoutLayer!]!
}