Adobe Acrobat XI - Manual (Page 433)

426
Printing
Last updated 1/14/2015
Note: Before creating your own halftone screens, check with your print service provider for the preferred frequencies and
angles. Also, be aware that some output devices override the default frequencies and angles.
Specify the emulsion and image exposure (Acrobat Pro)
Depending on the type of printing press used and how information is transferred from the film to the printing plates,
you may need to give your service provider film negatives or positives, with emulsion side up or down. Emulsion refers
to the photosensitive layer on a piece of film or paper. Typically, print service providers require negative film in the
United States and positive film in Europe and Japan. Check with your service provider to determine which emulsion
direction they prefer.
To tell whether you are looking at the emulsion side or the nonemulsion side (also referred to as the base), examine the
final film under a good light. One side appears shinier than the other. The dull side is the emulsion side; the shiny side
is the base.
A Positive image B Negative C Negative with emulsion side down
Note: The emulsion and image exposure settings in the Print dialog box override any conflicting settings in the printer
driver. Always specify print settings using the Print dialog box.
Follow these steps to specify the emulsion and exposure:
1 Select Output on the left side of the Advanced Print Setup dialog box.
2 For Color, choose Separations.
3 For Flip, select one of the following options:
None Makes no changes to the orientation of the imageable area. Type that is in the image is readable (that is, “right
reading”) when the photosensitive layer is facing you. This is the default.
Horizontal Mirrors the imageable area across a vertical axis so that it is “wrong reading.”
Vertical Mirrors the imageable area across a horizontal axis so that it is upside down.
Horizontal And Vertical Mirrors the imageable area across the horizontal and vertical axes so that it is wrong
reading. Type is readable when the photosensitive layer is facing away from you. Images printed on film are often
printed Horizontal And Vertical.
4 Select the Negative option for negative film; deselect it for positive film.
Note: The Negative option is also available if you choose In-RIP Separations from the Color menu.
Include marks and bleeds (Acrobat Pro)
You can place printer marks on the page to indicate the boundaries of document boxes supported by Adobe PDF, such
as trim boxes and bleed boxes. These marks are not added as page content; however, they are included in the PostScript
output.