SVG — Scalable Vector Graphics — is essentially distinct from JPG. Whereas JPG stores images as a grid of pixels, SVG encodes illustrations as mathematical definitions of geometric shapes. Which means SVG graphics scale to any size — from a small icon to a large banner — with no loss of sharpness.
Transforming JPG to SVG is a technique known as vectorization, and it is very beneficial for icons and clean graphics.
Before converting JPG to SVG, it is necessary to know what the conversion actually does. JPG files are a pixel-based image — a fixed grid of image pixels. An SVG is a vector image — a series of geometric shapes which software uses to draw the artwork.
The conversion works great for uncomplicated graphics with defined shapes and limited colors — icons, logos, symbols and illustrations. It does not work for complex photos with thousands of colors.
For best output, Adobe Illustrator's Image Trace function gives the most flexibility. Load the image in Illustrator, select the graphic, open the Image Trace settings and pick an suitable option.
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