Changing an Image to 300 DPI Without Touching a Single Pixel

"Please upload the image at 300 DPI." Print shops, journals and some government forms say this. Most people then open an editor, find a resize dialog, and accidentally resample the photo, making it bigger, blurrier or both. Here's the thing: DPI is metadata. It's a number in the file header that tells a printer how many pixels to put in one inch.... Weiterlesen: Changing an Image to 300 DPI Without Touching a Single Pixel