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Placing Linked Imagesīoth Illustrator and InDesign allow you to add linked images to your layouts. Just as Smart Objects allow you to edit the original source file and have it update in the Photoshop or GoLive files, so do linked images allow you to edit the original file and have it update in Illustrator or InDesign. On their face, linked files may not seem as intelligent as the Smart Objects in Photoshop and GoLive that we discussed in the previous section, but they function in a similar way. In this section we describe how to link graphics in Illustrator and InDesign, including which import options to choose, how to view and control imported graphics using the Links palette, when to embed rather than link graphics, and how to apply Illustrator effects to linked images. However, compared to their ancestors taped to the back of the layout, linked graphics in the CS2 applications give you much more flexibility. Artwork from external programs are placed as linked graphics in either Illustrator or InDesign. Today's electronic page-layout programs work similarly. In that way the graphics were linked to the layout. As the mechanical was prepared for printing, the negatives would be processed and the images inserted into the final print. Although the type was the final artwork, the graphics were simply placeholders for external camera negatives that were attached to the back of the layout. Way back in the days of mechanical board layouts, type and graphics were literally pasted on the layout.
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