I'm trying to alter the margins on a 511-page PDF, and so far not having much luck. Current dimensions are 6.14 inches wide, 8.5" tall (156 x 216 mm).
It's a book we produced almost 20 years ago, and unfortunately we no longer have the original Word documents, only the print-quality PDF we sent to the printers.
We're now trying to get it on Amazon Kindle Direct Publishing. However, KDP won't accept the PDF with its current margins (0.5 inch left and right). I've been trying to change it to their recommendation of 0.75" gutter and 0.25" outside edge.
I'm using the latest Acrobat Pro on Windows 10.
I've already used Print Production: Preflight: Pages: Scale pages to specified size, to set the PDF to the correct page size (I've a vague memory the printers had to do this for us when we first had the book printed in 2005, because we got the page size slightly off what we'd initially specified).
To alter the margins there seem to be two favoured methods:
1. File: Print: Adobe PDF: specify a larger page size, then use Edit: Crop to reduce the page size again, with appropriate margins, doing odd and even pages separately. Problem: the process positions the document top left on the new page, which still doesn't allow sufficient room to crop to a 0.75" margin. Even if it did, the subsequent cropping back down seems a very haphazard process.
2. Organise Pages: More: Set Page Boxes: Change Page Size: Custom: specify +0.25" X-offset for even pages, +0.25" X-offset change for odd pages. Problem: as many times as I try to do this, it makes no change whatsoever to either the page size, or the margins.
Any other suggestions for how I can proceed?
TIA
Robin
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