User Guide

Chapter 2: Documents and Setup

Image compression: Choose a format for output of image data to a Post-

Script device or file. The format you choose affects the amount of data

transmitted and the size of a PostScript file. This setting can affect com-

patibility with networks and PostScript printers.

ASCII: Outputs image data as plain text. This is the most

compatible format, but it transmits (or saves in files) the largest

amount of data.

Binary: Outputs images as binary data, which might not be

compatible with all printers and networks. Binary data is half the

size of ASCII data.

Level 2 ASCII: Outputs images in an ASCII format that is

compatible with PostScript Level 2 devices. This produces files that

are approximately 20% smaller than regular ASCII PostScript files.

RLE: Outputs images using Run Length Encoding compression.

This format is compatible with PostScript Level 2 devices. This form

of compression is most efficient when documents contain images

that have large areas of flat color.

JPEG: Outputs images using JPEG compression. This format is

compatible with PostScript Level 2 devices. JPEG compression

requires more system memory and more processing time at the

printer than other compression methods. However, this format

achieves the fastest printing results with continuous-tone

(photographic) images and documents containing transparency

effects.

By default, Canvas uses JPEG compression for printing images.

This can reduce the amount of data sent to the printer. If a

network print spooler reports errors with a JPEG data stream,

select Images: ASCII or Level 2 ASCII and try printing again.

The Images setting affects printing of images and rendered

effects only.

Additional

Information

Registration marks: Adds registration marks, used for alignment in col-

ored printing.

Canvas file name: Includes the Canvas filename at the top of the page.

Crop marks: Includes crop marks, short vertical and horizontal lines

that indicate the border where an illustration or page can be trimmed.

Plate names: Includes plate names when you are printing separations.