Rasters, on the other hand, are made up of pixels or tiny dots that compose an image using color and tone. Since their building blocks are pixels, raster images do not feature the kind of ...

You definitely don't need a higher number of PPI for small images, such as thumbnails or raster icons. Dots Per Inch are similar to Pixels Per Inch, except for the medium in which they’re used.

A raster image is like a photo in your newspaper. Look closely and you’ll see it’s made up of equally spaced round dots in several distinct colors. But if you look at an ad featuring a line ...

Choose Effect -> Document Raster Effects Settings ... a setting that controls the relative size of the halftone dots. Enter 96 into this field. The next four fields ask you to set the the screen ...

Raster images, on the other hand, consist of a series of dots set up in specific locations on a rectangular grid -- images are printed in reference to a specific location and by color value.