mPDF Manual – mPDF Variables

watermarkImgAlphaBlend

(mPDF >= 4.5)

watermarkImgAlphaBlend – Specify the blend mode for overlying watermark images

Description

void watermarkImgAlphaBlend

Specify the blend mode for overlying watermark images. Different blend modes work with different types of images. The blend modes are those specified in the PDF reference. The value of Normal gives acceptable results for most cases. ‘Multiply’ may produce better results with overlying WMF or SVG images.

Values

$watermarkImgAlphaBlend

Values

Normal

Multiply

Screen

Overlay

Darken

Lighten

ColorDodge

ColorBurn

HardLight

SoftLight

Difference

Exclusion

DEFAULT: Normal

Changelog

VersionDescription
4.5 Variable was added.

See Also