What is the difference between vector and bitmap artwork?
A vector image uses geometrical formulas (maths) to represent images. Bitmap images, also known as raster, are made up of a pattern of dots (pixels). Therefore, it is very easy to scale & change vector artwork using a programme such as Adobe Illustrator or Corel Draw.
If you are using bitmap images, try to have the highest resolution possible so when you want to scale so it doesn’t go blurry.