enableDeviceNOverprintPreview

Enable or disable DeviceN+overprint preview mode.
[read/write property] enableDeviceNOverprintPreview([out, retval] VARIANT_BOOL *on) enableDeviceNOverprintPreview([in] VARIANT_BOOL on)
If this is enabled, XpdfViewer renders the PDF file in DeviceN (CMYK + spot colors) mode, with overprint preview. This is useful for prepress previews. The default value is disabled.
VB6:
viewer.enableDeviceNOverprintPreview = True
enableColorManagement