All right, after some private messages to get a clear picture of what the desired result was, I think I have found it. (And since your mail server seems to be having trouble processing my last email I’ll go ahead and post your last description and the solution here):
>The book is 4” x 5”.
>That means if we were to print & cut out one page it would be 4” x 5” and the decorative border would be right on the edge of the paper.
>In a Saddle stitch book the frames from each page would touch each other in the center.
>The extra color that appears outside the frame is bleed.
>It should not show in the center of the book
>(consider this: each page is 4” x 5” the flat book should measure 8” x 5” & when folded it will be 4” x 5”
>What I’m getting now is a page that is 4.125” x 5” Because the bleed is showing and printing in the center of the book).
Here´s the solution: Basically you have defined a bleed for the inside of the pages, that is not really true so to say, since it shouldn’t be printed at all. So what you would do is to define the bleed box such that it excludes the inside bleed margin of the pages. To do this you can follow these steps:
- Set imposition mode to none and show the media box so that you can change the display boxes.
- Select page 1
- In the Inspector panel select the right most tab for the Display Box Inspector.
- From the popup select bleed box
- Now, for this first page, whose inside margin is to the left side keep the right margin at 0.375 inch and set the left margin to 0.5 inch
- Activate the document window again so that the first page in the list lights up and then press command-A to select all pages. (Make sure that the display box inspector still reads “Showing for page 1”. (If it doesn’t deselect and reselect page 1 while holding down the command key.)
- Select “Mirror margins on opposite pages” in the inspector.
- Click “Apply settings to all selected pages”. This will apply the settings of the currently showing page (page 1) to all selected pages, but exchanging the left and right margin on pages that are on the opposite side of the fold.
Then set the document to use the bleed box again and turn to your custom imposition layout. You should now get what you were after. Attached you’ll find a snapshot of the inspector with the correct settings for the bleed box, and the result in PDFClerk when using your custom layout template.
For interested readers of this thread the corrrect settings for the imposition template are basically a slight adaptation of the default 2-up layout:
2 Columns, 1 Row
Slot Size: “First Page Size Fixed”
No groups or gutters
No flipping
Page Distribution front: 4-1, back: 2-3
Display Boxes->Trim box: “Derive trim box from trim marks”
Global Signature
In the document settings, under the paper tab the Trim/Fold Marks are set to Manual and both vertical and horizontal trim marks have an inset of 0.125 inch. (and a gap of 0.069inch but that is not crucial). This in combination with the “derive trim box from trim marks” setting in the template will cause the marks to be drawn only on the outside edges of the pages, and not in the middle of the sheet where the fold will be.
I hope this nails it.

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