“It's still a bit unclear what you managed to accomplish though. Are you using InDesign's (extremely basic) Print Booklet feature to 'impose' an existing InDesign document?”
Yes, exactly, and I have now made my booklet successfully, thanks to this thread.
However, I would like to make an improvement. I am using A4 paper (because that's the size of my printer). InDesign's Print Booklet feature seems to insist that the pair of imposed pages (2-up, saddle) must be printed in portrait mode. This obviously means that the width of each printed page (containing a pair of imposed pages side-by-side) cannot exceed the width of an A4 page which is 210 mm. This makes for a tall and narrow booklet (I can't post an image from my desktop so here are some setups (the width, height and margin settings by experiment):
Document Setup:
Pages: 32; Facing Pages and Master Text Frame: checked; Width: 105 mm; Height 175 mm; Orientation: Portrait; Bleed and Slug: 0.
Margins and Columns:
Margins: Top, Bottom, Inside; Outside: 14 mm; Columns: 1; Gutter: 4.233 mm (default); Enable Layout Adjustment: unchecked (default).
Printing:
Printing is set to Portrait and Duplex printing (that is, each 2-up imposed page is automatically run through the printer twice, being printed on both sides.
This results in the imposed pair of pages (I mean InDesign Document pages) being located correctly on the A4 Page, the gutter being central suitable for the fold for the stapling.
However, if I could instruct the impositioning and/or the printer to print in Landscape, therefore with the above pair of imposed pages being turned tound 90 degrees, I could have a wider booklet, which is what I would like. (The corresponding restriction on the height would be OK). I have tried combinations of switching the Width and Height and Orientation settings but there is no change (or at least no change that gives me the result that I want).
Any ideas please?
Thanks