Color Management
PTC Arbortext Layout Developer (PTC ALD) includes a color management system, which enables you to ensure that the colors defined in an PTC ALD document or template are correctly matched in PDF output.
This is a summary of the process to manage colors in PTC ALD:
• Activate color management for the document or template
You activate color management by configuring settings in the Colour Management group of the Display tab of the Document Preferences dialog box.
If color management is not activated, ALD stores colors as in previous releases.
• Specify a working color profile for RGB and/or CYMK colors in your document/ or template
You can also set a rendering intent for the colors.
• PTC ALD uses the working color profile to convert the colors defined in the document or template to a device independent format. The colors are stored internally in a neutral color space.
If no working profile is set, PTC ALD uses a default profile to create the neutral color
Working color profiles are saved as a document preference. Equivalent color profiles must be installed on all machines that will be used to work on the document or template.
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Screen calibration color profiles are not supported.
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• Specify a color profile for the required output (screen or PDF) — this can be different to the working profile
You can use the fields in the Colour Profiles group on the General tab of the PDF Options dialog box to select output color profiles for CMYK, Greycscale or RGB colors.
• ALD converts colors from the neutral version to match the selected output color profile.
Output color profiles are embedded in PDF output.
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Conversion of colors in graphics is not supported.
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UI Enhancements Supporting this Feature
• Colour Management group in the Display tab of the Document Preferences dialog box
The group provides these options:
◦ Working CMYK profile — choose a profile to process the CMYK colors in your document or template into a neutral format
Displays a list of CMYK color profiles installed on Windows on the current machine
◦ Working RGB profile — choose a profile to process the RGB colors in your document or template into a neutral format
Displays a list of RGB color profiles installed on Windows on the current machine
◦ Rendering intent — select a rendering intent:
▪ Perceptual
▪ Saturation
▪ Relative Colorimetric
▪ Absolute Colorimetric
◦ Display RGB profile
You can access the dialog box with > > or the tdpref macro
• Colour profiles group in the General tab of the PDF Options dialog box
The group provides these options:
◦ Default CMYK profile — choose a profile to process the neutral CMYK colors in your document or template for PDF output
Displays a list of CMYK color profiles installed on Windows on the current machine
◦ Default Greyscale profile — choose a profile to process the neutral Greyscale colors in your document or template for PDF output
Displays a list of Greyscale color profiles installed on Windows on the current machine
◦ Default RGB profile — choose a profile to process the neutral RGB colors in your document or template for PDF output
Displays a list of RGB color profiles installed on Windows on the current machine
◦ Use built-in sRGB profile
FOM Objects Supporting this Feature
• fTemplatePreferencesOutput object
The object defines preferences for outputting formatted content.
The object provides:
◦ RenderingIntents constants group with entries that specify rendering intents Perceptual, Saturation, Relative Colorimetric, and Absolute Colorimetric
◦ Properties that match the selections that can be made in the Colour Management document preference:
▪ workingProfileRGB
▪ workingProfileCMYK
▪ renderingintent
▪ displayProfileRGB
