When converting RAW to JPEG, there is an option to enter the DPI. For my camera the DPI is set to 72 by default. I tried entering an much bigger number like 500, but the resulting JPEGs look the same; they also have the same numbers of pixels, but the one with higher DPI takes up more space on the hard drive. So what does having more DPI do? edit: I know what the term stands for. What I need to find out is how it effects the pictures.