Set the blend mode of a page object

Wraps FPDFPageObj_SetBlendMode. PDF blend modes mirror the Porter-Duff / PDF 1.4 transparency spec. Allowed values: "Normal" (default), "Multiply", "Screen", "Overlay", "Darken", "Lighten", "ColorDodge", "ColorBurn", "HardLight", "SoftLight", "Difference", "Exclusion", "Hue", "Saturation", "Color", "Luminosity".

Usage

pdf_obj_set_blend_mode(obj, mode)

Arguments

obj

A pdfium_obj from pdf_page_objects(). Parent doc must be readwrite.

mode

Character scalar; one of the 16 PDF blend mode names listed above.

Value

Invisibly returns the parent pdfium_doc.