Adobe InDesign CS3 - Manual (Page 580)

INDESIGN CS3
User Guide
573
Understanding creep
Creep specifies the distance pages move away from the spine to accommodate paper thickness and folding in Saddle
Stitch and Perfect Bound documents. InDesign considers the “cover” of the final piece to be the outermost printer
spread, while the “centerfold” is considered to be the innermost printer spread. The term sheet represents two printer
spreads: the front of the sheet and the back of the sheet. The creep increment is calculated by dividing the specified
creep value by the total number of sheets minus one.
For example, a 16-page InDesign document could yield eight printer spreads, or four sheets. The front of the first
sheet will consist of the first printer spread (pages 16 and 1) while the back of the first sheet will consist of the second
printer spread (pages 2 and 15).
If the creep value in this example is 24 points (an exaggerated amount for the sake of clarity), the creep increment
will be 8 points per sheet (24 divided by 3). The amount of creep applied to the outermost sheet will be 24 points,
the amount of creep applied to the second sheet will be 16 points, and the amount of creep applied to the third sheet
will be 8 points. No creep will be applied to the fourth and innermost sheet.
The amount of creep for each successive sheet is decreased by the creep increment. In summary, each page on the
outermost sheet is moved 12 points (half of the 24-point creep value for this sheet) away from the spine, each page
on the second sheet is moved 8 points (half of the 16-point creep value for this sheet) away from the spine, and each
page on the third sheet is moved 4 points (half of the 8-point creep value for this sheet) away from the spine.
Preview or view a summary of booklet printing
The Preview area of the Print Booklet dialog box lets you review color thumbnails of the printer spreads created by
your selected imposition style. You can also see the printer’s marks you’ve specified in the Print dialog box.
1 Choose File > Print Booklet.
2 Do any of the following:
• Click Preview on the left side of the dialog box. To flip through the printer spreads, click the scroll arrows. Click
the left scroll arrow to go backwards from spread to spread. You can also drag the scroll box to change printer
spreads.
• Click Summary on the left side of the Print Booklet dialog box to view a summary of current booklet settings.
Check the bottom of the Summary area for any conflicting settings.
If you click Print Settings and change the settings in the Print dialog box, you can observe the effect of the modified
settings in the Preview area.