
PDF S: A
Adobe Creative Suite 5 Printing Guide 6
settings will automatically be available to the other applications.
(However, some installed presets are available only within Distiller or
Illustrator). Adobe applications install a default set of PDF creation
presets, which cannot be edited; however, you can start with a default
preset, duplicate it, and edit the duplicate preset for your workflow.
While the interfaces for creating PDF options differ slightly between the
applications, the concepts are the same. An introduction to the features
of the common default presets follows.
Smallest File Size
Appropriate for online distribution or e-mail attachments (but not for
use in commercial printing, where reliable viewing, online proofing, and
reproduction of original content is crucial), the Smallest File Size option
aggressively compresses and resamples image content, and converts all
RGB, CMYK, and grayscale content to the sRGB color space (spot colors
are retained, however). This may result in noticeable color shifts from
the original artwork. Note that the compatibility setting for Smallest File
Size is now Acrobat 6.0, to reflect latest best practices and
requirements. Settings include:
•Compatibility: Acrobat 6.0 (PDF 1.5), which maintains live transpar-
ency and layers (provided the PDF is created via direct export, rather
than generating PostScript and distilling).
•Color Images: Bicubic downsampling to 100 ppi; Compression =
Automatic (JPEG); Image Quality = Low.
•Grayscale Images: Bicubic downsampling to 150 ppi; Compression =
Automatic (JPEG); Image Quality = Low.
•Output: Destination = sRGB IEC61966-2.1.
High Quality Print
Intended for imaging on in-house proofers and desktop printers. Any
RGB, Lab or spot-color content will remain in the original color space
and won’t be converted to CMYK. While this might be appropriate for
desktop printers or other digital imaging devices, color appearance may
be compromised if the PDF is processed in a workflow that does not
honor color profiles. For reliable color rendition, Adobe recommends
using a workflow that correctly honors color profiles. High Quality Print
settings include:
•Compatibility: Acrobat 5.0 (PDF 1.4), which maintains live transpar-
ency (provided the PDF is created via direct export, rather than gener-
ating PostScript and distilling).
•Color Images: Bicubic downsampling to 300 ppi; Compression =
Automatic (JPEG); Image Quality = Maximum.
•Grayscale Images: Bicubic downsampling to 300 ppi; Compression =
Automatic (JPEG); Image Quality = Maximum.
•Output: No color conversion; include tagged source proles.
Press Quality
The settings of the Press Quality preset create a PDF that converts color
content to CMYK using the specified destination profile, which locks the
output to a particular device. Press Quality settings include:
•Compatibility: Acrobat 5.0 (PDF 1.4), which maintains live transpar-
ency (provided the PDF is created via direct export, rather than gener-
ating PostScript and distilling).
•Color Images: Bicubic downsampling to 300 ppi; Compression =
Automatic (JPEG); Image Quality = Maximum.
•Grayscale Images: Bicubic downsampling to 300 ppi; Compression =
Automatic (JPEG); Image Quality = Maximum.
•Output: Convert content with proles to destination; preserve color
numbers for untagged content; maintain spot colors.
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