You can use the "Page box" service
to have the portal provide the function for configuring a page box
The "Page box" service is based on the "Toolbox" web service.
Edit page box
You can use this dialog box to modify the various page boxes for a PDF page. The various boxes are as follows:
•Media box = The page’s physical dimensions.
•Crop box = The visible (printable) page area.
•Bleed box = Untrimmed content position on the page (content dimensions plus trim box).
•Trim box = Trimmed content position on the page (final content dimensions).
•Art box = Position for special page content (images).
You can edit or remove the individual boxes.
For more details on selecting pages, please refer to the Page functions chapter.