rasterize

/ˈræstəraɪz/
verb
  1. To convert an image or text into a grid of pixels (a raster image) for display or printing.
    • The graphic designer had to rasterize the vector logo so it could be used on the website.
    • The printer software will automatically rasterize the document before sending it to the machine.
    • When you rasterize a font, it becomes a picture and can no longer be edited as text.