Overprint strokes and fills

Last updated on Jun 2, 2026

Learn how to use the Attributes panel in Adobe InDesign to apply overprint settings to create color mixing effects for commercial printing.

Overprinting allows one ink to print over another without removing the ink underneath, helping you avoid white gaps and create intentional color blends. InDesign defaults to knockouts, except for 100% black, which overprints automatically. Manual overprinting works best when colors don’t share inks or when you need custom trapping. Most PostScript Level 2 and 3 devices support it, but check with your print provider before applying these settings.

Preview overprint effects

Before printing, verify how overprinted colors will appear on press using the Separations Preview panel. Overprint Preview shows accurate color mixing only for spot and process inks. The simulation depends on your monitor's color accuracy.

Select Window > Output > Separations Preview.

Select Overprint Preview from the View menu.

Review the onscreen simulation of how inks will interact during printing.

Overprint strokes or fills

Apply overprint to the stroke or fill of any selected path, including text outlines. Overprinted elements don't require trapping because they intentionally allow underlying colors to show through.

Select one or more paths using the Selection tool or Direct Selection tool, or select text characters with the Type tool. To overprint a nested path pasted inside a frame, use the Direct Selection tool to select the inner path before accessing the Attributes panel.

Select Window > Output > Attributes.

In the Attributes panel, select Overprint Fill to overprint the fill of selected objects or unstroked text.

Select Overprint Stroke to overprint the stroke of selected objects.

For dashed, dotted, or patterned strokes, select Overprint Gap to overprint the color in stroke gaps.

When overprinting strokes to simulate traps between adjacent colors, align the stroke outside the path rather than centered on it. For spot color traps, apply the lighter color to the stroke and enable overprint for that stroke.