Table 148 – Overprinting behavior in the opaque imaging model

Source colour space

Affected colour component

Effect on colour component

OP false

OP true,OPM 0

OP true, OPM 1

DeviceCMYK, specified directly, not in a sampled image

C, M, Y, or K

Paint source

Paint source

Paint source if ≠ 0.0Do not paint if = 0.0

Process colorant other than CMYK

Paint source

Paint source

Paint source

Spot colorant

Paint 0.0

Do not paint

Do not paint

Any process colour space (including other cases of DeviceCMYK)

Process colorant

Paint source

Paint source

Paint source

Spot colorant

Paint 0.0

Do not paint

Do not paint

Separation or DeviceN

Process colorant

Paint 0.0

Do not paint

Do not paint

Spot colorant named in source space

Paint source

Paint source

Paint source

Spot colorant not named in source space

Paint 0.0

Do not paint

Do not paint