How to Change DPI of an Image: 4 Free Methods

How to Change DPI of an Image: 4 Free Methods Knowing how to change the DPI of an image is the difference between a print job that looks sharp and one that comes out blurry. This guide covers four methods — Pixotter, Photoshop 2024 (v25.x), Windows Paint, and Mac Preview — so you can pick the one that fits your workflow. Before you start, make sure you actually know your image's current DPI. If you haven't checked it yet, read How to Check Image DPI first — it'll tell you exactly what you're working with before you change anything. You can also check metadata directly in Pixotter without installing anything. Understanding DPI vs PPI — They're Not the Same DPI (dots per inch) and PPI (pixels per inch) get conflated constantly, and it matters when you're trying to change one. PPI describes pixel density in a digital image file — it's the number of pixels packed into one inch of the image at its native display size. This is stored in the image's metadata and is what most software shows wh