Microsoft KB Archive/40817

PowerPoint: EPS Graphics Image Poorly to Genigraphics PSS ID Number: Q40817 Article last modified on 02-27-1991 PSS database name: M_PowerPt

2.01

MACINTOSH

Summary:

Genigraphics’ slide-making service does not support PostScript. Therefore, encapsulated PostScript (EPS) graphics in a Microsoft PowerPoint presentation do not image with PostScript quality to the Genigraphics slide maker. Instead, a 72 dot-per-inch (dpi) bitmap is returned.

More Information:

An encapsulated PostScript file (EPSF) on the Macintosh consists of two parts: a PostScript data fork and a PICT resource fork. The PostScript portion is used if the graphic is sent to a PostScript-compatible device, such as an Apple LaserWriter. The PICT resource fork is used to display the graphic on the Macintosh screen (which is a 72 dpi QuickDraw device) and to send the image to output devices that do not support PostScript. When an EPS graphic is sent to a high-resolution QuickDraw device, such as the Genigraphics camera, the PostScript data is ignored and only the low-resolution bitmap is imaged.

For best results with the Genigraphics service, use a graphics application that outputs in QuickDraw (PICT) format, such as MacDraw II, Canvas, SuperPaint, or PowerPoint.

Copyright Microsoft Corporation 1991.