SVG — Scalable Vector Graphics — is fundamentally different from JPG. While JPG stores pictures as a raster of pixels, SVG encodes graphics as mathematical definitions of geometric shapes. Meaning SVG images scale to all sizes — from a small icon to a large banner — without any loss of sharpness.
Transforming JPG to SVG is a operation called raster to vector conversion, and it is very beneficial for icons and simple graphics.
When converting JPG to SVG, it is get more info essential to understand 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.
This works extremely well for uncomplicated graphics with defined shapes and limited colors — icons, logos, symbols and illustrations. It does not work for photographic images with thousands of colors.
For best output, Illustrator's Image Trace feature gives the most control. Load the image in Illustrator, select the image, access the Image Trace panel and pick an appropriate preset.
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