Adobe 62000112DM User Guide - Page 482

ADOBE ACROBAT 3D VERSION 8 475 User Guide See also "Working with color profiles" on page 429 "Previewing output" on page 469 "Create an ink alias for a spot color" on page 478 "About rendering intents" on page 438 Convert document colors 1 In the Convert Colors dialog box, select an option from the list of color spaces and colorants used in the document. 2 Select an option from the Action menu: Preserve Keeps objects in the selected color space when the document is output. Convert Uses the destination space profile to convert color objects to a common ICC profile for an output device. Decalibrate Removes embedded profiles from the color objects in that color space (or alternate space, if one is specified for a spot color). Map To Process [color] Maps spot colors to the destination space by way of another ink, called an alias. The Convert Colors dialog box uses the settings in the Ink Manager as a starting point. If an alias is set up in the Ink Manger, it will also be set up in the Convert Colors dialog box. 3 Specify the space to which colors will be converted. The destination profile defines the target output device for the converted color spaces. 4 If the PDF includes groups of transparent objects, specify a blending space for the pages set for conversion. Choose a device space or an ICC profile. The blending space enables objects of multiple color spaces to blend when interacting transparently. If the PDF does not include transparency groups, choose Leave Unchanged. Note: This feature can improve output of legacy PDFs that use transparency but don't specify a page-level blending space, such as PDFs created from non-Adobe applications, or versions of Illustrator older than Creative Suite. These older PDFs depend on the application or printer to choose the blending space. 5 Specify the pages to convert. 6 Select a conversion option: Embed Profile As Source Color Space Tags all objects with the destination profile selected in the Profile menu. As an example, a document might contain five objects: one in grayscale and two each in the RGB and CMYK color spaces. In this case, you can embed a separate color profile to calibrate the color for each color space, for a total of three profiles. This might be useful if your RIP performs color management of PDFs or if you are sharing PDFs with other users. Embed Profile As OutputIntent Uses the destination profile as the output intent. An output intent describes the color reproduction characteristics of a possible output device or production environment in which the document will be printed. The color spaces in the document will be DeviceGray, DeviceRGB, or DeviceCMYK, depending on the color model of the destination profile. This destination profile replaces any existing output intent. Don't Embed Profile Does not tag objects with the profile. Preserve Black Objects Preserves the color values of objects drawn in CMYK, RGB, or grayscale during conversion. This option prevents text in RGB black from being converted to rich black when converted to CMYK.