Adobe 65023809 - Creative Suite 4 Master Collection Printing Manual page 29

Copied and pasted artwork
Vector artwork that shows no entry in the Links panel has likely been copied and pasted from
Illustrator. This should present no problem during imaging. Pasting content from Illustrator
offers the advantage of being completely editable within InDesign, but it has no relationship
with the original Illustrator file. The artwork is now part of the InDesign file, independent of the
Illustrator file from which it was copied, as if it had been drawn in InDesign. Thus, editing the
original file in Illustrator does not change the InDesign file.
Image content copied and pasted from Photoshop, however, presents some problems. Even if the
original image was CMYK, the copied content is RGB. There is no link to the original file, and
thus no editability and no way of determining the file name of the original file. Essentially, it's a
screen shot.
If possible, obtain the original Photoshop image from the file creator and place, rather than
copy and paste, it in the InDesign file. If you cannot obtain the original image, select the image
(or frame) in InDesign, and copy to the clipboard. Launch Photoshop and create a new, empty
file (File > New). Accept the size Photoshop indicates—it's based on the dimensions of the
image content you copied to the clipboard. Paste the image; in Photoshop CS4, it becomes a
Vector Smart Object. Press Return or Enter after pasting. Then, choose Layer > Smart Objects >
Rasterize. Perform the desired edits, change color space if necessary, and save the file. To update
the InDesign file with the new file, select the frame containing the pasted image, choose File >
Place, and navigate to the saved image you created. Above all, advise your customer not to copy
and paste from Photoshop in the future. While Photoshop and InDesign allow it, it's not a good
production practice.
Determining image resolution and color space
To check the resolution and color space of an individual image, select it and consult the Info
panel (Window > Info). However, not all formats can be determined in this manner: while the
Info panel displays information for TIFF, JPEG, PSD, and Photoshop EPS files, it cannot display
information about PDFs or Illustrator AI or EPS files containing images. Pay special attention
to the Actual ppi (pixels per inch) and Effective ppi values: Actual ppi describes the original
resolution of the image as it was saved from Photoshop; Effective ppi describes the resolution of
the image as it is used in InDesign. For example, a 300 ppi image that has been scaled at 200% in
InDesign would have an Actual ppi of 300 x 300, and an Effective ppi of 150 x 150. This informa-
tion is useful in determining if an image has been scaled beyond a desired resolution.
Layer overrides to placed files
The Layer Overrides (Object > Object Layer Options) in InDesign allow a designer to control the
display of layers in Photoshop, Illustrator, or PDF files from within InDesign CS4. A designer can
even apply different layer visibility overrides to different instances of the same source file. Wise
use of this technique can reduce the number of images that need to be tracked, transported, and
managed, while also giving designers new flexibility and simplified file management. Applying
layer overrides does not alter the original layered file; it only affects how the file displays in
InDesign; files with layer overrides output as they appear on screen. Graphics governed by Object
Layer are indicated in the Links panel with a "Yes" in the Layer Overrides column, followed by a
number indicating how many layers are affected.
Using the Info Panel
Selected images (PSD, TIFF, EPS, and JPEG)
display their resolution and color space in
the Info panel .
Adobe Creative Suite 4 Printing Guide 27