• Vector Graphics. Common formats include SVG (Scalable Vector Graphics) and EPS (Encapsulated PostScript).
• Raster/Bitmap Graphics. Formats include JPG, TIFF, PNG, BMP and many more.
• PDF ( Portable Document Format) files may contain either raster or vector graphics or a combination of both.

What exactly are vector graphics?

• Vector graphics are produced with nodes and lines. 
• Between two nodes a (straight/curved) line runs.
• An enclosed shape is created when the last line meets the first node.
• The distance between each node and line can be increased or decreased.
• This type of graphic is produced with applications such as Adobe Illustrator and CorelDRAW.
• They are great for making stickers and signs as they scale indefinitely without loss of clarity.
• There are no variations in colour unless intentional.
• The quality doesn't deteriorate if making image smaller and then larger.