PDF Printing Issues

How to Fix Unavailable Color Separations in Acrobat Print Settings

Natalie TaylorNatalie Taylor Oct 28, 2026 868 views

Question details

The user is unable to select color separations when attempting to print a full-color newspaper center spread from Acrobat Pro to an imagesetter.

How to Fix Unavailable Color Separations in Acrobat Print Settings
Product
Adobe Acrobat Pro
Device & OS
not provided
Scenario
Printing a full-color newspaper center spread to an imagesetter for prepress production.
Observed behavior
The Separations option in the Advanced Print settings dialog is unavailable or grayed out.
Before you start

Ensure that your imagesetter is powered on, properly connected to your network or workstation, and that you have the administrative rights to modify printer driver settings.

Solution 1Recommended

Verify PostScript Workflow and Printer Support

Ensure the selected output device and driver fully support color separations and PostScript workflows, as incompatible drivers will disable this feature.

Acrobat relies heavily on the printer driver's capabilities to determine which output options are available. If a non-PostScript driver is selected, prepress features like separations are hidden.

1
Select the Correct Printer

Open the Print dialog in Acrobat Pro (Ctrl+P or Cmd+P) and ensure your specific imagesetter or PostScript RIP is selected from the Printer dropdown menu.

2
Check Advanced Print Setup

Click on the 'Advanced' button at the top of the Print dialog box to access the professional Output settings.

3
Verify Color Profile

Under the Output pane on the left, check the 'Color' dropdown menu. Ensure 'Separations' can be selected instead of 'Composite'.

4
Bypass Poster Mode

Close the Advanced dialog and ensure that poster-printing mode or scaling features are turned off in the Page Sizing & Handling section, as these can conflict with separations.

Verify PostScript Workflow and Printer Support
PostScript Requirement: The Separations option will permanently remain disabled if the selected output device or print mode does not natively support PostScript color separations.
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Frequently Asked Questions

Why is the Separations option grayed out in Acrobat Pro?

The Separations option is usually disabled if the selected printer does not support PostScript, if you are not using a compatible RIP driver, or if conflicting print settings like poster-printing are currently enabled in the print dialog.

What is a PostScript workflow in PDF printing?

A PostScript workflow utilizes the PostScript page description language to accurately translate complex layouts, fonts, and colors from a digital PDF file into high-quality printed output, which is strictly required for generating color separations.

Can I print color separations to a non-PostScript printer?

No, standard non-PostScript inkjet or laser printers process composite colors (CMYK or RGB mixed together) and cannot natively generate the individual cyan, magenta, yellow, and black plates required for physical prepress color separations.

How do I verify my document's color settings before printing?

In Acrobat Pro, you can use the Output Preview tool found under Print Production. This allows you to check the color spaces, verify spot colors, and simulate how the separations will appear before sending the file to the imagesetter.