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I've been given an image (I'm guessing straight from a camera) and it's currently at at 240 pixels per inch. It's been a while since I did much Photoshop; I have three questions for two requirements:
- Back in the day the web used 72dpi images because that's all screens worked at. Is 72dpi still the most appropriate resolution for the web?
- I need to use the image in a phone application. I know phone devices have higher DPIs than 72 but do you need to feed them a high-DPI image to begin with, or will a massive 72dpi image work properly?
- How do I resize an image from 240dpi to 72dpi while maintaining detail? i.e. I don't want to go from a 240px * 240px at 240dpi to 72px * 72px at 72dpi.