A vector image is different than the other types of images that you may know. Other images are made by pixels. Vector images are made by a group of shapes and are created by formulas.

Features of vector images

• Unlike a picture, vector images don't lose quality if you increase their size.
• The file sizes are usually smaller than a bitmap image.
• Vector files don't have the same level of detail as bitmaps, which is the reason that they are used by engineers and architects.