The trade-off, then, is between image quality and speed. Because high-quality images contain more pixels and more colors these are separate attributes they take longer to transmit over the Internet. Conversely, because lower-quality images contain fewer pixels and colors they download more rapidly. You may get an unpleasant surprise. Although they interact, resolution and image size are independent properties.
Resolution means the number of dots per inch.
Although current laser printers are capable of 600 dpi, the standard VGA screen only displays 72 pixels per inch. The Netscape Gold editor, for example, allows you to change the displayed width and height of the image. Corel Photo-Paint allows you to resample and resize the image all at once. It may seem peculiar to think of colors in a cube, but it is extremely helpful to do this for almost all computer applications. Then click on Edit .