SVG

SVG (Scalable Vector Graphics) is an open, web-native vector format that describes images as shapes and paths in XML text. Like any vector graphic, it scales to any size without losing sharpness, so an SVG logo or icon stays crisp at every resolution, from a tiny favicon to a full-page header.

Because it is text under the hood, SVG is easy to edit, style, and animate, and it stays remarkably small for graphics like icons, logos, and diagrams. It is the go-to format for crisp UI graphics on the web, where one file serves every screen density.

In the PDF world, SVG and PDF are cousins, both describe vector content, so SVG artwork converts cleanly into the vector graphics inside a PDF, keeping logos and diagrams sharp. For photographs, though, SVG is the wrong tool; that is what raster formats like JPG and PNG are for.