Adobe 65023809 - Creative Suite 4 Master Collection Printing Manual page 68

Converting images containing 3D content to CMYK will flatten all 3D content; editability will be
lost as a result.
Smart filters
In previous versions of Photoshop, filter effects, such as artistic watercolor and stained glass
effects, caused permanent changes. But the Smart Filter option in Photoshop CS4 allows such
effects to be applied nondestructively. Select a layer in the Layers palette, then choose Filters >
Convert for Smart Filters. Then apply any number of filters to the Smart Filter layer. Such filters
can be reworked or deactivated without any interpolation of the image. Multiple filters can be
applied to a layer designated as a Smart Filter layer. Each Smart Filter will have its own visibility
control in the Layers palette.
To hide the effects of a single Smart Filter, click the eyeball icon next to the filter's name. If you
need to edit a customer's Smart Filter effects, double-click the name of the applied filter in the
Layers palette. The filter's dialog box will be displayed; change the parameters as desired. To hide
the effects of all Smart Filters, click the eyeball icon next to the Smart Filters sublayer. If a cus-
tomer supplies an image containing Smart Filters layers, keep in mind that flattening the image
will remove all editability and permanently change pixels affected by Smart Filters.
Tagged Image File Format (TIFF)
TIFF (file extension .tif) maintains many of the same features supported by the native Photoshop
format—including layers, clipping paths, spot color channels, ICC profiles, Smart Objects, and
Smart Filters. TIFF files are often larger than native Photoshop files with the same layer content,
but because more applications support the format, they are also more usable outside an all-Adobe
workflow. However, some non-Adobe applications may not support layered TIFF files.
Encapsulated PostScript (EPS)
The EPS (file extension .eps) format does not support many of the features of native Photoshop
files—such as layers, Smart Objects, and Smart Filters. Traditionally, the EPS format has been
favored for images in which clipping paths are used to silhouette an object, or for images to be
printed as multitone (duotone, tritone, and so on). If your customer has supplied EPS files, there
is no advantage to re-saving them as native Photoshop files.
EPS files offer support for vector content, such as type and vector shapes; the files will print with
sharp vector edges when placed in Illustrator or InDesign. However, reopening such images in
Photoshop re-rasterizes them, and as a result, loses the crisp fidelity of vector content.
While the EPS format is supported by most page layout, word processing, and graphics applications,
non-PostScript printers will image only the screen-resolution preview component of EPS files.
When saving an EPS file, note the options in the Save dialog box:
Preview: Creates a low-resolution image for viewing in other applications or printing to non-
PostScript printers. For an EPS file that will be shared between Windows and Mac systems,
choose the TIFF preview option. An 8-bit preview is color, while 1-bit previews are black and
white, resembling a fax image; 8-bit previews add more to file size than 1-bit previews.
Encoding: Determines the way image data is delivered to a PostScript output device. Encoding
options include:
• ASCII (or ASCII85): Select this option if you are printing from Windows, or if you
experience printing errors with other options.
Smart Filters
Add nondestructive filter effects to a layer by using Smart
Filters . Control the visibility of Smart Filter effects with the
eyeball icons .
Adobe Creative Suite 4 Printing Guide 66