mPDF Manual – HTML control tags

watermarkimage

(mPDF >= 3.0)

watermarkimage – Set an image to use as a Watermark

Description

<watermarkimage  $src [ $alpha ] [ $size ] [ $position ] />

Set an image to use as a Watermark. The watermark is a semi-transparent background printed on each page, used for text such as “DRAFT” or a background image. The watermark will be added to each page when the Footer is printed if the variable showWatermarkImage is set to 1 or TRUE.

Parameters

$src

This parameter specifies the image file to use for the watermark. This can be a full URI or use a relative path

</span>

$alpha

This parameter defines the transparency value (alpha) to use for the watermark. The Value should be between 0 and 1.

DEFAULT: 0.2

$size

This parameter takes either a pre-defined string, an integer, or an array of width and height. Defines the size of the watermark.

Values

D: default i.e. original size of image - may depend on img_dpi

P: Resize to fit the full page size, keeping aspect ratio

F: Resize to fit the print-area (frame) respecting current page margins, keeping aspect ratio

INT: Resize to full page size minus a margin set by this integer in millimeters, keeping aspect ratio

2 comma-separated numbers ($width, $height): Specify a size; units in millimeters

DEFAULT: “D”

$position

This parameter takes either a pre-defined string or an array of $x and $y. Defines the position of the watermark on the page.

Values

P: Centred on the whole page area

F: Centred on the page print-area (frame) respecting page margins

2 comma-separated numbers ($x, $y): Specify a position; units in millimeters

DEFAULT: “P”

Changelog

VersionDescription
3.0 The tag was added.

Examples

Example #1

<?php

$mpdf = new mPDF();

$mpdf->showWatermarkText = true;

$mpdf->WriteHTML('<watermarkimage src="images/background.png" alpha="0.4" size="200,250" />');

$mpdf->WriteHTML('
Hallo World
');

?>

See Also