Photoshop eps encoding options, Save a file in photoshop dcs format, Save a file in photoshop raw format – Adobe Photoshop CS4 User Manual
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USING PHOTOSHOP CS4
Saving and exporting images
Last updated 1/10/2010
Note: Only PostScript Level 3 printers support PostScript Color Management for CMYK images. To print a CMYK image
using PostScript Color Management on a Level 2 printer, convert the image to Lab mode before saving in EPS format.
Include Vector Data
Preserves any vector graphics (such as shapes and type) in the file. However, vector data in EPS
and DCS files is available only to other applications; vector data is rasterized if you reopen the file in Photoshop. This
option is only available if your file contains vector data.
Image Interpolation
Applies bicubic interpolation to smooth the low-resolution preview if printed.
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Photoshop EPS encoding options
ASCII or ASCII85
Encodes if you’re printing from a Windows system, or if you’re experience printing errors or other
difficulties.
Binary
Produces a smaller file and leaves the original data intact. However, some page-layout applications and some
commercial print spooling and network printing software may not support binary Photoshop EPS files.
JPEG
Compresses the file by discarding some image data. You can choose the amount of JPEG compression from very
little (JPEG Maximum Quality) to a lot (JPEG Low Quality). Files with JPEG encoding can be printed only on Level 2
(or later) PostScript printers and may not separate into individual plates.
Save a file in Photoshop DCS format
DCS (Desktop Color Separations) format is a version of EPS that lets you save color separations of CMYK or
multichannel files.
1
Choose File
> Save As, and choose Photoshop DCS
1.0 or Photoshop DCS 2.0 from the Format menu.
2
In the DCS Format dialog box, select the options you want, and click
OK.
The dialog box includes all the options available for Photoshop EPS files. Additionally, the DCS menu gives you the
option of creating a 72-ppi composite file that can be placed in a page-layout application or used to proof the image:
DCS 1.0 format
Creates one file for each color channel in a CMYK image. You can also create a fifth file: a grayscale or
color composite. To view the composite file, you must keep all five files in the same folder.
DCS 2.0 format
Retains spot color channels in the image. You can save the color channels as multiple files (as for DCS
1.0) or as a single file. The single-file option saves disk space. You can also include a grayscale or color composite.
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Photoshop DCS 1.0 and 2.0 formats
Save a file in Photoshop Raw format
The Photoshop Raw format is a file format for transferring images between applications and computer platforms. The
Photoshop Raw format is not the same as camera raw.
1
Choose File
> Save As, and choose Photoshop Raw from the Format menu.
2
In the Photoshop Raw Options dialog box, do
the following:
•
(Mac
OS) Specify values for File Type and File Creator, or accept the default values.
•
Specify a Header parameter.