8.1.1.2.8. PDF Box

 
A PDF can have up to five different descriptions relating to page size:
 
  • Media box - Size of the physical medium; this is the page format.
  • Bleed box - Page size plus bleed (cut space); defines the trimmed page plus the bleed.
  • Trim box - Defines the intended dimensions of the finished page after trimming. Imposition applications use this type of box for arranging the order of pages.
  • Crop box - Defines the area to which page contents must be clipped when displayed or printed.
  • Art box - Size of the page content (artwork); might be used for imposition purposes; typically, it can be used to specify any section of the page.
 
Default setting of Crop Box should work for majority of cases for large format printing. For more specialist type applications such as pre-press or other specialist application you might need to change this setting.