Graphic editing software

SVG stands for Scalable Vector Graphics, it means that the image is represented by a set of mathematical figures. PNG stands for Portable Network Graphics which is represented by a table of pixels 'small squares".

The differences between those two formats are the following ones:

• when using a zoom feature you will see that images in PNG will look ugly as they are based on pixels, not calculations.
• SVG images can be modified as you are just changing the mathematical paths of the elements.