instructions and mathematical formulae to describe each glyph, which make the character outlines scalable to any size.
* Stroke fonts use a series of specified lines and additional information to define the size and shape of the line in a specific typeface, which together determines the appearance of the glyph.

Bitmap fonts are faster and easier to create in computer code than other font types, but they are not scalable: a bitmap typeface requires a separate font design for each size. Outline and stroke typefaces can be resized