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.

Note: This variable can be changed as any other configuration variable

Values

$watermarkImgAlphaBlend

'Normal'
'Multiply'
'Screen'
'Overlay'
'Darken'
'Lighten'
'ColorDodge'
'ColorBurn'
'HardLight'
'SoftLight'
'Difference'
'Exclusion'

Default: 'Normal'

Changelog

Version	Description
4.5	Variable was added.