8.5

The Grayscale resolution you enter in the following box is used to control the down sampling
process. Select None to prevent grayscale down sampling. Select Average to average pixel
shades in each sample area and to replace the entire area with a pixel of the average shade.
Select Subsample to use a pixel in the center of the sample area and replace the entire area with
that pixel value. This method is significantly faster, but results in images that are less smooth.
Select Bicubic to use a weighted average to determine pixel shades. This method is the slowest
but most precise and results in the smoothest tonal gradations.
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Resolution: Select the resolution to use for grayscale images. Note that this setting has an
impact on the grayscale down sampling process.
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Color images group
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Compression: Select the compression to use for the color images. Flate is a lossless
compression method, so no data is lost in the process. It works well on images with large areas
of single shades or repeating patterns, such as screen shots and simple images created with
paint or drawing programs. JPEG removes image data and may reduce image quality, but may
be suitable for continuous-tone photographs containing more detail than can be reproduced
onscreen or in print. Since JPEG eliminates data, it can achieve much smaller file sizes than
Flate compression. Select Auto to let the application choose the best compression method
automatically. Note that configurations that were created with an earlier version of PlanetPress
Workflow and that included tasks set not to use any compression will by default be set to use the
Flate compression method.
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Downsampling: Select the down sampling option. Down sampling reduces image size by
breaking images down into small areas in which multiple pixels are replaced by single pixels.
The Color resolution you enter in the following box is used to control the down sampling process.
Select None to prevent grayscale down sampling. Select Average to average pixel color in each
sample area and to replace the entire area with a pixel of the average color. Select Subsample to
use a pixel in the center of the sample area and replace the entire area with that pixel value. This
method is significantly faster, but results in images that are less smooth. Select Bicubic to use a
weighted average to determine pixel shades. This method is the slowest but most precise and
results in the smoothest tonal gradations.
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Resolution: Select the resolution to use for color images. Note that this setting has an impact on
the color down-sampling process.
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Security group
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Set document permissions: Select to enter the Permissions password.
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Permissions password: Enter a password in this box only if you want to prevent users
who does not have this password from changing the security options of the generated PDF