Imposition Adjustment
You can change the imposition of any page in the by context-clicking the page and choosing Page Adjustments > Edit from the context menu.
NOTE: The adjustments displayed in this dialog box are the cumulative results of all adjustments you have done on the selected page.
Offset
You can center a page, offset a page from the origin (lower left), or offset a page from the center.
Center
Centers the page in the placeholder along the chosen axis (horizontal or vertical). The Center check box reflects the current center state; it is selected if the page was previously centered (regardless of the offset), and deselected if not.
When you change the state of the Center option, the offset command sets the absolute position instead of adding to the previous one. In other words, the existing offset is reset, and the values of Center and Offset by are applied instead. In this case, the dialog box may display a warning: Changing the centering will reset the previously applied positioning.
NOTE: Changing the Center option on multiple pages, with a mixed Center state, becomes more complicated: Pages whose Center option will be changed are given an absolute offset; pages whose Center option will not be changed are given a relative offset.
Offset by
Moves the page along the chosen axis (horizontal or vertical). Positive values move the page to the right, negative values move the page to the left. The default value is 0, meaning that no extra offset will take place.
Scale
You can reduce or enlarge the scale of a page within the imposition layout.
Horizontal
To scale the page on the horizontal axis, select the Horizontal radio button and enter a value in the box.
•Positive values scale the image area up by the specified percentage towards the right of the page.
•Negative values scale the image area down by the specified percentage towards the left of the page.
•Click the Scaled to fit radio button to scale the horizontal page size up to the template page size.
Vertical
To scale the page on the vertical axis, select the Vertical radio button and enter a value in the box.
•Positive values scale the image area up by the specified percentage towards the top of the page.
•Negative values scale the image area down by the specified percentage towards the bottom of the page.
•Click the Scaled to fit radio button to scale the vertical page size up to the template page size.
Retain original aspect ratio
Select this check box if despite all changes you want the image to keep its original aspect ratio.
Rotation
To rotate the page, click the Rotation list, and select one of the page rotation options:
•None
•90°
•180°
•270°