Html

Question

What is the difference between SVG and other picture format ?

Answer 1

A png (Portable Network Graphics) file is a raster or bitmap image file format. A raster image is made up of a fixed number of  pixels. 
The image cannot be enlarged without distortion occurring. Common raster image files include png, jpg and gif formats. 
A svg (Scalable Vector Graphics) file is a vector image file format. A vector image uses geometric forms such as points, lines, curves and shapes (polygons) to represent different parts of the image as discrete objects. These forms can be individually edited. A vector image remains crisp and clear at any resolution or size.

http://asiapacific.anu.edu.au/mapsonline/faq/what-difference-between-png-file-raster-image-and-svg-file-vector-image

Answer 2

https://stackoverflow.com/questions/2336522/png-vs-gif-vs-jpeg-vs-svg-when-best-to-use#7752936