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Version: v6

PDF Invoice Hooks – gfpdf_invoice_watermark

Description​

Use this filter to dynamically override the text watermark displayed in the PDF Invoices.

Arguments​

The following arguments are passed to functions that use this hook:

$watermark | string​

  • The text watermark to display in the PDF.

$settings | array​

  • The PDF Invoice settings

$entry | array​

  • The current Gravity Forms Entry

$form | array​

  • The current Gravity Forms form

Usage​

Change the text watermark for all PDF Invoices across all forms:

add_filter( 'gfpdf_invoice_watermark', function( $watermark, $settings, $entry, $form ) {
    return 'CONFIDENTIAL';
}, 10, 4 );

Change the text watermark for all PDF Invoices on an individual form:

add_filter( 'gfpdf_invoice_watermark', function( $watermark, $settings, $entry, $form ) {
    if ( (int) $form['id'] === 20 ) {
        return 'CONFIDENTIAL';
    }
    
    return $watermark;
}, 10, 4 );

Source Code​

This hook can be found in the Gpdf_Invoice_Base::get_watermark() method, which is located in the /config/gpdf-invoice-base.php file in the PDF Working Directory.