Adobe ILLUSTRATOR CS2, Руководство пользователя, Страница: 484 / 567

477 ADOBE ILLUSTRATOR CS2
User Guide
3
Select the kinds of printer’s marks you want to add. You can also choose between Roman and Japanese-style
marks.
4 (Optional) If you select Trim Marks, specify the width of trim-mark lines and the offset distance between the trim
marks and the artwork.
To avoid drawing printer’s marks on a bleed, be sure to enter an Offset value greater than the Bleed value.
See also
“To create crop marks around an object” on page 476
About bleed
Bleed is the amount of artwork that falls outside of the printing bounding box, or outside the crop marks and trim
marks. You can include bleed in your artwork as a margin of error—to ensure that the ink is still printed to the edge
of the page after the page is trimmed or that an image can be stripped into a keyline in a document. Once you create
the artwork that extends into the bleed, you can use Illustrator to specify the extent of the bleed. Increasing the bleed
makes Illustrator print more of the artwork that is located beyond the trim marks. The trim marks still define the
same size printing bounding box, however.
The size of the bleed you use depends on its purpose. A press bleed (that is, an image that bleeds off the edge of the
printed sheet) should be at least 18 points. If the bleed is to ensure that an image fits a keyline, it needs to be no more
than 2 or 3 points. Your print shop can advise you on the size of the bleed necessary for your particular job.
To add a bleed
1
Choose File > Print.
2 Select Marks & Bleed on the left side of the Print dialog box.
3
Enter values for Top, Left, Bottom, and Right to specify the placement of the bleed marks. Click the link icon
to make all the values the same.
The maximum bleed you can set is 72 points; the minimum bleed is 0 points.
PostScript printing
About PPD files
A PPD (PostScript Printer Description) file customizes the behavior of the driver for your specific PostScript printer.
It contains information about the output device, including printer-resident fonts, available media sizes and orien­
tation, optimized screen frequencies, screen angles, resolution, and color output capabilities.
Illustrator uses the information in the PPD file to determine which PostScript information to send to the printer
when printing a document. For example, Illustrator assumes that the fonts listed in your PPD file reside in the
printer, so they are not downloaded when you print, unless you explicitly include them.
For best printing results, Adobe recommends that you obtain the latest version of the PPD file for your output device
from the manufacturer. Many prepress service providers and commercial printers have PPDs for the imagesetters
they use. Be sure to store PPDs in the location specified by the operating system. For details, consult the documen­
tation for your operating system.