OT: Not really an InDesign question, but I'm setting up a document that's 3 feet wide x 4 feet high. Each page will contain one photo filling the page. These are to be printed and viewed at a distance of about 30 feet. I'm trying to figure out what resolution these need to be! I've been studying this page which suggests I only need the photos to be 10 ppi (or 20 ppi if the lighting is really good). Does this sound correct? I haven't worked with much large format. Thanks, Phyllis
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