POINT A unit of measurement for type equal to 1/72 inch; abbrevi- ated “pt.” POINTER A small shape that follows the movement of the mouse on screen or shows where your next action will take place. The pointer can be an arrow, an I-beam, or other shapes. POLYGON A figure that has more than 4 sides. The Polygon tool is used to create polygons in Canvas. PORTRAIT The orientation of a page or illustration so that the height is larger than the width. POSTSCRIPT® (1) An Adobe Systems, Inc. computer language that defines the appearance of printed type and images. (2) A type of font that relies on PostScript to be printed. POSTSCRIPT PRINTER DESCRIPTION (PPD) A text file that provides information about a specific printer to the operating system and application programs (refer to operating system documentation for specifics). PPI Pixels per inch; a measure of the resolution of an image. PREFERENCES Preferences are options that let you customize the display, tools, and commands. PRESS (1) To point to an item on screen and press and hold down the mouse button without moving the mouse. (2) To push a key down and then release it; you hold a key down only when using a modifier key with another key, for example, when instructed to press Ctrl+A. PRINTER DRIVER A program that controls the exchange of informa- tion between the computer and a specific type of printer (refer to operating system documentation for specifics). PROCESS COLOR The method for printing a full range of colors using only cyan, magenta, yellow, and black; also, any one of these colors. Compare to “spot color,” page G.771. .PSD Extension used for Photoshop graphics files; Canvas can import .PSD files as well as export to that format. RANDOM-ACCESS MEMORY (RAM) The part of the computer’s mem- ory that stores information temporarily while you’re working. RASTER IMAGE A picture made up of a matrix of pixels, created by digitizing or scanning an image, which is contained in a paint object (see “bitmap,” page G.760). REGISTRATION MARK A small mark, several of which are used together to align films and plates for commercial printing. RGB COLOR Method of defining colors, based on combinations of the primary colors red, green, and blue. Also, a color mode for digital images. Polygon tool Registration mark
Canvas 8 Help: Glossary (11 of 15)      Page #769