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General Photography

DPI

Dots Per Inch — a measure of print resolution indicating how many ink dots fit in one linear inch of printed output.

DPI determines print quality by specifying how densely ink dots are placed on the page. Standard high-quality printing requires 300 DPI at the target print size. A 3000×2000 pixel image printed at 300 DPI produces a 10×6.67 inch print. Printing the same image at a larger size reduces the effective DPI — stretching it to 20×13 inches drops to 150 DPI, where individual pixels may become visible. Understanding DPI helps photographers determine whether their images have sufficient resolution for their intended print sizes.\n\nProfessional print services set minimum DPI requirements to ensure output quality. Large-format printing (posters, banners) can use lower DPI (150-200) because these prints are viewed from farther away, where the eye cannot resolve individual dots. Fine art and gallery prints demand 300+ DPI because they are examined closely. Photo books and magazines also require 300 DPI for crisp reproduction of facial details and fine text.\n\nDPI is sometimes confused with PPI (pixels per inch), which describes screen display density. A 4K monitor displaying a full-screen image has a fixed PPI based on its physical size. DPI only becomes relevant when the digital image is translated into physical ink dots on paper. When preparing images for both screen and print, the pixel dimensions matter most — DPI is simply a conversion factor that determines the physical print size.\n\nMagic Eraser's AI Enhance helps users meet DPI requirements by upscaling images to sufficient resolution. If a user's image would print at only 150 DPI at their desired size, the AI upscaling tool can double the resolution to achieve 300 DPI with AI-generated detail, producing sharp prints from images that were originally too small. This automated DPI assessment and resolution matching removes the technical guesswork from print preparation, allowing users to simply specify their desired print dimensions and receive an image optimized for sharp reproduction at that exact size.

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