1. The Difference: Vector vs. Raster Graphics

This is the fundamental concept.

<ul> <li><strong>Raster Graphics (Pixel-Based):</strong> Images like JPEGs, PNGs, and GIFs are made up of tiny colored squares called pixels. They are resolution-dependent. When you zoom in, the pixels become visible, and the image becomes blurry. This is why a small photo looks bad when blown up.</li> <li><strong>Vector Graphics (Formula-Based):</strong> Images like SVGs, AI (Adobe Illustrator), and EPS files are made up of mathematical paths, lines, and curves. They are resolution-independent. You can scale them to any size—from a tiny pin to a billboard—without any loss of quality or pixelation.</li> </ul> For most apparel and merchandise, **vector graphics are the gold standard for logos and text-based designs**.