I have a Photoshop file of an image that is about 2" x 2", scanned at 600 ppi. I need to enlarge it to at least 6" x 6", possibly 8" x 8" (for a final JPEG to be printed). - can I do this at 600 ppi, and if so, what option should I use (preserve detail or bicubic smoother)? - should I rescan it at a higher ppi instead? Thank you!
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