Hello Roberta,
You are likely printing in rasterized mode. This is necessary in some workflows, but probably not what you want -- especially if you want to control levels and references in Acrobat.
The Rasterized control may be turned off in the Print dialog. You can also specify a default value for the control in the printer driver configuration file. I suggest reading this blog article for more information about rasterized vs. non-rasterized printing:
http://communities.bentley.com/Other/Old_Site_Member_Blogs/Bentley_Employees/b/andrew_edges_blog/archive/2008/06/21/rasterized-versus-non-rasterized-printing.aspx
To enable level/reference control in Acrobat, you must turn on the "Enable Optional Content" property in pdf.pltcfg. See http://docs.bentley.com/en/Redline/redlinehelp465.html.
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The color assignments defined in a pen table element output action operate on per-element basis. They are useful if you wish to change the color of an element based on its level, reference, etc. When you assign a new print color to an element via a pen table element output action, the entire element is affected.
When using pen color maps, either defined in the pen section of a pen table or a printer driver configuration file, it is not possible to segregate elements based on level, reference, etc. The pen color maps are applied on a low-level geometry basis, with no input criteria other than graphic's color index. This allows selective resymbolization of multi-colored elements such as custom line styles, text styles, and patterning.
The explanation gets complicated when the print color is specified both in a pen table element output action and a pen color map. Basically the pen table element output action is applied first. If the pen table element output action specifies an RGB color, then the entire element will be printed in that color regardless of any pen color maps. If the pen table element output action specifies an index color, then that index color is subject to be remapped via pen color maps for each piece of geometry making up that element.
If neither the printer driver configuration file nor the pen table contain pen color maps or element output color actions, then the elements will be printed using the same color they display in the view.
The recommended workflow depends on what you're trying to accomplish. In general, it would be a good idea to avoid defining pen color maps in both the printer driver configuration file and the pen table. That would just lead to confusion.
If all you are trying to do is substitute a simple color table at print time, or perform any uniform resymbolization based on color index, then pen color maps are the best choice. Whether you choose to define them in a pen table or .pltcfg file depends on your preference. If you don't need a pen table for any other reason, then you might want to place the color assignments in your .pltcfg file. If you use multiple .pltcfg files and/or need a pen table for other purposes, then it would likely be easier to consolidate your resymbolization into a single pen table file.
If you need to selectively resymbolize elements based on their level, reference, or criteria other than color index, then pen table element output actions are required.
If all you are trying to do is print everything in black & white, or in grayscale, then there is a color mode control on the Print dialog that can be used for that purpose, without having to mess with pen maps or element output actions.
RobertaLuccioli:I have another different question to submit.
Just a friendly suggestion, but we recommend asking one main question in each thread. Using the same thread to ask various questions makes it difficult to follow (not to mention for others to "find" possible answers to their inquiries in the future).