Text layer images [Black] and overprinting

[Black] Only Images

All images used on the text layer for interior and prelim pages are set to use the InDesign default colour [Black] swatch. No other colours or colour modes (such spot colours, RGB, Pantone or LAB) are used.

Tints

Any tint of [Black] from 1-100% is acceptable.

Avoid using 0% tints as this becomes white and can cause other production issues such as disabling overprinting.

Process Black using the InDesign default ‘[Black]’ is used for all text layer images:

Note: Images on any other layer including covers and jackets are not restricted to black only and overprinting in this way.

Overprinting

All images are set to overprint. This means that images can be changed during a print run without affecting the underlying base images and artwork.

Apply overprinting to pixel images using the InDesign Attributes panel

Bitmap images (referred to as ‘Black and White’ images in the InDesign Links panel) and Grayscale can be set to overprint using InDesign.

To apply overprint to pixel images it is important to select the content of the image frame rather than the frame itself. Do this using the InDesign Direct Selection Tool or with a graphic frame selected choose (InDesign Object menu > Select > Content).

With an appropriate image selected in this way, apply overprinting using the InDesign Attributes panel (InDesign Window menu > Output > Attributes):

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• Pixel images used on the text layer should be saved as either Bitmap or Grayscale in Photoshop:

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Apply Overprinting using using the Illustrator Attributes panel

It is possible to apply overprinting using the Illustrator Attributes panel (Illustrator Window menu > Attributes).

After selecting Illustrator artwork with the Direct Selection Tool tick the checkbox to apply Overprint Fill and/or Stroke:

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Note: GreenLight is not currently checking vector artwork from Illustrator.

InDesign Online Help on Swatches

InDesign Online Help on Overprinting