SetRenderOverprintSimulation

Rendering, color management, prepress

Description

Enables or disables overprint simulation while rendering PDF pages

The renderer reads the graphics-state /OP, /op, and /OPM entries and preserves overlapping process or named inks in the raster result

Syntax

Delphi

Function TPDFlib.SetRenderOverprintSimulation(Enable: Integer): Integer;

DLL

int DLSetRenderOverprintSimulation(int InstanceID, int Enable);

ActiveX

Function PDFlib::SetRenderOverprintSimulation(Enable As Long) As Long

Parameters

Enable	Nonzero enables overprint simulation; 0 restores normal rendering

Return values

1	The setting was applied

Remarks

Simulation is disabled by default so existing RGB rendering remains unchanged

In overprint mode 1, zero process components preserve destination ink; named color spaces preserve unmentioned process channels in both overprint modes

DeviceRGB painting is not treated as process-ink overprint

Read the active setting with GetRenderOverprintSimulation