Adobe 22020737 Acrobat X Pro Manual - Page 425

USING ACROBAT X PRO 419 Printing Declare the presence of trapping information If you are sending your PDF files to a print service provider, you can use the Document Properties dialog box to specify whether a PDF contains trapping information. This detail can help prevent the service provider from adding potentially conflicting trapping commands to the file. Trapping information can either be imported with other PostScript information from the authoring application, or it can be created in Acrobat using trapping presets supported by Adobe In-RIP Trapping. 1 Open the PDF file, and choose File > Properties. 2 Click the Advanced tab. 3 Choose an option from the Trapped menu, and click OK. Yes The file contains trapping information. No The file doesn't contain trapping information. Unknown You don't know whether the file contains trapping information. More Help topics "Adobe In-RIP trapping" on page 421 Saving separations as PostScript Depending on the prepress software available, a service provider may be able to perform such prepress activities as trapping, imposition, separating, and OPI replacement at the output device's RIP. Therefore, your service provider may prefer to receive a composite PostScript file of the document optimized for in-RIP separations rather than a preseparated PostScript file. Saving the file as PostScript preserves the separation settings, the PPD information, and any color conversions you have specified in the Advanced Print Setup dialog box. For best results when generating PostScript for reuse in a print production workflow, use the Save As command rather than the Print To File option available in the Print dialog box. More Help topics "PostScript options" on page 409 Last updated 10/11/2011