Cropping pages in PDF

On occasion, you may find that you need to crop one or more pages whose overall page dimensions conflict with the others in the PDF document. Acrobat offers two methods for doing this: You can crop pages in the Crop Pages dialog box, where you must specify the values of the crop margins, or with the Crop tool on the Editing toolbar, where you draw the crop marks right on the page.
To open the Crop Pages dialog box, select the Crop Pages command on the Pages palette Options pop-up menu or choose Document>Pages>Crop on the menu bar. When you do this, Acrobat displays the Crop Pages dialog box, as shown in Figure.
You can then select from the following options in the Crop Pages dialog box to resize the desired page or pages:

• Page Display: Specify different types of clipping paths for the cropping operation in this drop-down list: Crop Box (defines display and printing by the Crop tool), Bleed Box (defines, for professional printing, where a bleed area is included to allow for paper trimming or folding), Trim Box (defines the finished dimension of the page after cropping), or Art Box (defines page contents that include white space). Note that each page display option is defined by a different color box in the page preview of the Crop Pages dialog box. Selecting the Show All Boxes check box displays all defined display options in preview. Deselecting this check box displays each display option individually when selected in the Page Display drop-down list.
• Crop Margins: Specify how much to cut off the page from the top, left, right, and bottom margins by typing a number in the associated text boxes or by using the toggle buttons. Select the Remove White Margins check box to have Acrobat figure out the crop margins by removing all the white space around the text and graphics on the specified pages. Click the Set to Zero button to restore all margin values to zero. Click the Revert to Selection button to use the dimensions of the previously used cropping rectangle. Select a measuring unit (Inches is the default) in the Set Values drop-down list.
• Page Range: Determine which pages you want to crop. Select the All radio button to crop all pages, the Selection radio button to crop only the page(s) selected in the Pages palette or the Pages radio to crop the range you specify in the From and To text boxes. _ Crop: Limit what type of pages are cropped in the selected range by choosing Even and Odd Pages, Odd Pages Only, or Even Pages Only.