SVG — vector graphics — is fundamentally different from JPG. While JPG stores images as a raster of pixels, SVG encodes illustrations as mathematical descriptions of shapes, lines and colors. This means SVG images scale to all sizes — from a small icon to a massive print — with no quality loss.
Converting JPG to SVG is a process referred to as raster to vector conversion, and it is very beneficial for icons and clean more info graphics.
Before converting JPG to SVG, it is important to realize what happens. A JPG is a raster image — a fixed grid of image pixels. An SVG is a vector image — a set of mathematical instructions that applications renders as the image.
Results are excellent for uncomplicated graphics with defined shapes and limited colors — icons, logos, symbols and illustrations. It works less well for detailed photographs with fine detail.
For quality conversion, Illustrator's Image Trace feature gives the most control. Load the image in Illustrator, select the graphic, open the Image Trace dialog and select an relevant setting.
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