-blend

Set the blend mode for PDF.

Syntax

-blend value

Values

• Normal - Selects the source color, ignoring the backdrop.
• Multiply - Multiplies the backdrop and source color values.
• Screen - Multiplies the complements of the backdrop and source color values, then complements the result.
• Overlay - Multiplies or screens the colors, depending on the backdrop color value.
• Darken - Selects the darker of the backdrop and source colors.
• Lighten - Selects the lighter of the backdrop and source colors.
• ColorDodge - Brightens the backdrop color to reflect the source color.
• ColorBurn - Darkens the backdrop color to reflect the source color.
• HardLight - Multiplies or screens the colors, depending on the source color value.
• SoftLight - Darkens or lightens the colors, depending on the source color value.
• Difference - Subtracts the darker of the two constituent colors from the lighter color.
• Exclusion - Produces an effect similar to that of the Difference mode but lower in contrast.

The default value is Multiply.

Normal is recommended for transparent images.

Printer Configuration File

You can define the blend mode in the Printer Configuration File (PRT). For example:

<!-- <Blend>Normal</Blend> -->

See Also

PDF Blend Modes: Addendum
For sample collateral, see Transparent Color Image Support in the User Guide (Login Required).