Desktop Publishing Carnegie-Mellon University Spring 2001 Dave Watterson Art Director, GATF

Welcome to Desktop Jeopardy! 3 teams 2 questions to each team Each question worth 10 points If that team misses you have the opportunity to steal

1. The basic colors that are used in color process printing are __________ _________ __________ __________

2. Your monitor uses the _____________ color model

3. The combination of red, green and blue colors on screen can produce more than _____________ million colors.

4. The file size of a 72 dpi file that is increased to 144 dpi will be ________ times the size of the original.

5. For printed material to display natural looking halftones it is recommended that the image dpi is ______ times the line screen used in the printing method.

6. In QuarkXPress the tool needed to edit elements within a selected text or picture box is the __________ tool.

File Format Overview

Raster vs. Vector All computer images come in either Vector or Bitmap formats Each has it’s own advantages and disadvantages

Raster or Bitmapped Images Image defined pixel by pixel and its resolution is fixed They are called resolution dependent

Vector/Illustration Images A vector or object-oriented image is a mathematical equation where each object is defined by points connected by paths. They are resolution independent

Vector-Based Applications Adobe Illustrator Macromedia Freehand CorelDraw These images can be save in a variety of formats so that they can be used and displayed in other in other types of programs

Resolution Independent They retain their characteristic shapes at different sizes and output resolutions

File formats to Look For TIFF (.tif) EPS (.eps) DCS (.dcs)

File Formats for Web GIF (.gif) JPEG (.jpg)

TIFF files in QuarkXPress Image Control: One-bit (black& White) and grayscale images can be assigned a color in Xpress. A grayscale TIFF can also be edited with contrast and halftone commands in the Style menu

TIFF files in QuarkXPress File Size and Compression: Typically uncompressed TIFFs are about 20% smaller than EPS files. A TIFF can be saved with non-lossy LZW compression to make their file sizes smaller.

TIFF files in QuarkXPress Onscreen Display: Xpress generates a low-resolution proxy to preview an imported TIFF. The quality of this preview depends on preset preferences.

TIFF files in QuarkXPress Cropping: If you crop a TIFF inside Xpress, the printer processes only the viewable data

TIFF files in QuarkXPress Downsampling: QuarkXPress will downsample all TIFFs to two times the halftone screen frequency

EPS files in QuarkXPress An EPS file can be a bitmap/raster or an object-oriented/vector graphic depending on which program was used to generate the EPS.

EPS files in QuarkXPress Image Control: An EPS graphic has already been converted to PostScript Which means that this is a locked file

EPS files in QuarkXPress File Size and Compression: An EPS file is typically 20% larger than an uncompressed TIFF file

EPS files in QuarkXPress Onscreen Display: The preview is built into the structure of the PostScript. The speed of the display is dependant upon the preview option chosen when creating the EPS file

EPS files in QuarkXPress Cropping and Downsampling: Xpress always sends everything to the printer. This can significantly increase the printing time.

Contacting me I don’t have an office on campus and really work all day Please me and I will set up a meeting time as quickly as possible

Thanks for your attention! Now let’s head over to the lab (CFA Room 318)