SVG — vector graphics — is fundamentally distinct from JPG. Whereas JPG saves photos as a raster of pixels, SVG encodes illustrations as mathematical descriptions of paths and colors. Meaning SVG images scale to any size — from a 16x16 pixel favicon to a billboard — without pixelation.
Transforming JPG to SVG is a technique known as image vectorization, and it is especially useful for logos and simple graphics.
Before converting JPG to SVG, it is necessary to know how the process works. A JPG is a raster image — a set grid of dots. 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 line art. It works less well for detailed photographs with fine detail.
For professional results, Illustrator's Image Trace function gives the most flexibility. Open your JPG in Illustrator, click the image, access the Image Trace panel and pick an appropriate preset.
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