your chief occupation is prepress, then it’s not a good idea to switch to Gimp. The exception to this rule is if you work with a UNIX version of Photoshop. If you work with the UNIX version, then you can create converting your completed image from RGB to indexed (see “RGB, Grayscale And Indexed” on page 266). The rule of thumb is: Always work with RGB (or with whatever color model you need) and don’t convert it until printer will need at least 60 ppi, and a 600 dpi laser printer will need 100 ppi (minimum). A general rule is that inkjet printers get away with a lower ppi than laser printers, so try 50 ppi for a 300 dpi

that the most im- portant elements are placed at key points. A rule of thumb, not always to be followed but good to keep in mind, is the “rule of thirds”, which says that maximum impact is obtained by placing respecting Photo composition rules. Six options are available: • No Guides • Center lines • Rule of thirds • Rule of fifths • Golden sections • Diagonal lines Auto Shrink Selection This option is active the image or layer. Rule of thirds Divides the transforming area in nine equal parts by adding two horizontal lines and two vertical lines equally spaced. According to this rule the most interesting parts

that the most important elements are placed at key points. A rule of thumb, not always to be followed but good to keep in mind, is the ‘rule of thirds’, which says that maximum impact is obtained by placing you hit return or click somewhere else, the name will revert to its original value. It is a general rule that you cannot alter the resources that GIMP pre-installs for you: brushes, patterns, gradients, you hit return or click somewhere else, the name will revert to its original value. It is a general rule that you cannot alter the resources that GIMP pre-installs for you: brushes, patterns, gradients,

that the most important elements are placed at key points. A rule of thumb, not always to be followed but good to keep in mind, is the "rule of thirds", which says that maximum impact is obtained by placing hit return or click somewhere else, the name will revert to its original value. It is a general rule that you cannot alter the resources that GIMP pre-installs for you: brushes, patterns, gradients network. The name of the URI scheme is therefore derived from the network protocol used for it as a rule. Examples of that are http or ftp. Since URLs are the first and most common kinds of URIs, the