GMI Performance Optimization 3

Question 1

To optimize a multi-page publication for offset printing, which PDF compression method preserves sharp edges on text and line art?

Accepted Answer

ZIP compression for line art and JPEG for continuous-tone images

Answer

ZIP compression is lossless and ideal for sharp-edged line art, while JPEG efficiently compresses continuous-tone photographic content.

Question 2

When batch-processing color corrections across hundreds of images, which approach minimizes processing time while maintaining consistency?

Accepted Answer

Use a Photoshop action with a calibrated adjustment layer

Answer

A Photoshop action with calibrated adjustment layers automates consistent corrections across all images in a single batch operation.

Question 3

In graphic reproduction, what does 'GCR' (Gray Component Replacement) primarily optimize?

Accepted Answer

Ink consumption and drying time in print

Answer

GCR replaces CMY gray components with black ink, reducing total ink coverage and improving drying performance on press.

Question 4

A workflow uses JDF (Job Definition Format) to automate press-to-prepress communication. The primary performance benefit is:

Accepted Answer

Elimination of manual data re-entry between systems

Answer

JDF automates job information exchange between systems, eliminating manual re-entry and reducing workflow bottlenecks.

Question 5

Which technique best reduces moiré patterns when scanning previously printed halftone artwork, improving output quality?

Accepted Answer

Using a descreen filter set to the original halftone frequency

Answer

A descreen filter specifically targets and removes the halftone dot pattern at the frequency it was originally printed, minimizing moiré artifacts.

(GMI) Graphic Measures International Certification Practice Test