object are very rare. It is difficult to create this object with the current
desktop applications. When Prinergy encounters this kind of object, it
will convert the file to PDF 1.3. Note that converting to PDF 1.3 will also
flatten any transparent objects in the file.
Non-separable Blend Modes and Non-white-preserving Blend Modes
:
Non-separable blend modes (Hue, Saturation, Color, Luminosity) and
non-white-preserving blend modes (Difference and Exclusion) are not
supported by the following:
●
Separation Viewer plug-in
●
Vector output JTP (not for use when creating separated output)
●
Prepress Portal Smart Review proofing
This means that files that use the non-separable or non-white-
preserving blend modes will fail:
●
To separate in Separation Viewer
●
To trap in PDF Trapper
●
To output separated vector output
●
To proof in Prepress Portal Smart Review unless the proofing mode
uses the Proofing JTP
About PDF specification levels
The following represent only limited highlights of the specification
levels for input files in the print industry.
Level Attributes
PostScript level 1
Able to draw objects and images with one color, that is,
separated.
PostScript level 2 Includes all the attributes of PostScript 1 with the
addition of composite colors such as RGB and CMYK.
PostScript level 3 Includes all the attributes of PostScript 2 with the
addition of DeviceN and shading objects.
PDF 1.3
Almost the equivalent of PostScript 3.
When you move from PDF 1.4 to an earlier specification level (that is, PDF 1.3,
PostScript level 3, and earlier), there is no native transparency. The move to an
earlier level will invoke flattening.
PDF 1.4
Includes all the attributes of PDF 1.3 with the addition of
transparency and JBIG2 compression.
PDF 1.5
Includes all the attributes of PDF 1.4 with the addition of
layers and JPEG 2000 compression.
PDF 1.6
Includes all the attributes of PDF 1.5 with the addition of
native Open Type fonts.
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Chapter 7—Input files
