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Adobe Creative Suite 5 Printing Guide 117
•Units: Lets you set the unit of measurementpoints, picas, millime-
ters, centimeters, and inchesfor the page dimensions of each box in
the thumbnail preview.
•Margin Controls: Lets you crop the page (or range of pages) to speci-
ed dimensions by entering desired proportions. Note that this a
masking procedureinformation outside the new margin dimensions
is not discarded. Consequently, the le size is not reduced. In addition,
it’s possible for some applications and prepress processes to ignore
the margin seings, or choose which options to respect. For example,
when placed in InDesign, a PDF that uses margin controls to reduce
the dimensions of the visible area can be “de-cropped” through the
Show Import Options controls.
•Change Page Size: Enables you to extend the dimensions of the pages
in the PDF. is is much like the Canvas function in Adobe Photoshop
CS5think of it as the opposite of cropping. You can only increase the
page dimensions, however; you can’t reduce the dimensions.
Box Options
Margin Controls
Change Page Sizes
Set Page Boxes
Display Art, Trim, Bleed, and Crop boxes as overlays on the thumbnail preview. Move the
boundaries of those boxes with Margin Controls, and extend the page size by using the
Change Page Size options.
1. Choose Set Page Boxes from the Print Production task list.
2. In the Set Page Boxes dialog box, choose a unit of measure.
3. Select a boundary to modify:
•Crop denes the boundary for the contents of a page when it’s dis-
played or printed. If not otherwise specied (for example, in the JDF
seings), the crop boundary determines how page contents are posi-
tioned on the output medium.
•Trim denes the nished dimensions of the page aer trimming.
•Bleed denes the clipping path when the page is printed professionally
to allow for paper trimming and folding. Printer marks may fall outside
the bleed area.
•Art denes the meaningful content of the page, including white space.
4. In the Margin Controls area, adjust the Top, Boom, Le, and Right
margins by entering values or clicking the increment arrows. Mar-
gin values are the amount the boundary is moved inward from its
initial position. Lines are displayed on the page thumbnail and in
the document window to show the new margin positions.
5. Select other options, as appropriate:
•Remove White Margins crops the page to the artwork boundary.
•Set To Zero restores the crop margins to zero.
•Revert To Selection reverts to the crop margin that you selected with
the Crop tool.
6. Specify the desired pages to be aected by your margin choices,
and click OK.
You can also crop a page by selecting the Crop tool in the Pages task list
in the Tools panel and dragging a cropping rectangle on the page.
Select a handle at a corner of the cropping rectangle, and drag it to the
size you want. Double-click within the cropping rectangle (or press the
Enter or Return key on the keyboard) to open the Set Page Boxes dialog
box. Cropping is nondestructive: it affects only display and print, but
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