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PDF Invoice Hooks – gfpdf_invoice_currency_format

Description​

Use this filter to override the currency used in the invoice, and format all prices in the PDF invoice using the new currency.

Arguments​

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

$currency | string​

  • The three-letter ISO 4217 currency code assigned to the entry

$settings | array​

  • The PDF Invoice settings

$entry | array​

  • The current Gravity Forms Entry

$form | array​

  • The current Gravity Forms form

Usage​

Change the currency for all PDF Invoices across all forms:

add_filter( 'gfpdf_invoice_currency_format', function( $currency, $settings, $entry, $form ) {
	return 'EUR';
}, 10, 4 );

Change currency for all PDF Invoices on an individual form:

add_filter( 'gfpdf_invoice_currency_format', function( $currency, $settings, $entry, $form ) {
    if ( (int) $form['id'] === 20 ) {
	    return 'EUR';
	}
	
	return $currency;
}, 10, 4 );

Source Code​

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

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