I'm using InDesign to layout my first book to be printed by IngramSpark. It is a mainly text, but I want to sprinkle in some black and white images. Two questions:
1. IngramSpark says the images should be convert too grayscale. Not sure what they mean. I can convert them to grayscale in Photoshop, but if I then export them to JPG for inclusion in my document, the JPGs are RGB, correct? So what do I have to do to satisfy IngramSpark in this regard?
2. I'm using Cate Baum's preflight profile for Acrobat, which was pointed out in a recent thread here. Of my test image, it says "effective ink coverage is above 245%." This is true, as I can verify it by using InDesign's Separations Preview window. So my question is, how should I address that? I guess one way is to use PhotoShop and just light the image using Curves or something similar so that the blacks are not as black. But I'm wondering if there is a better way as I suspect this is a common problem with many images.
Thanks in advance for any help.
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