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Gravity PDF v4 will receive bug fixes and security updates until October 4, 2019, however it's recommended you upgrade to v5 as soon as practical.
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Description #description

This filter can be used to dynamically change or add to a form’s PDF settings. For a permanent way to set the PDF settings you should use the GPDFAPI::update_pdf() method instead.

You also have the option to use the gfpdf_pdf_config_$form_id filter.

Parameters #parameters

$settings | array
The current PDF settings being processed

Usage #usage

This snippet shows you how you can easily update all your forms from a legacy v3 template to a v4 template, without having to manually change the settings in the UI.

add_action( 'gfpdf_pdf_config', function( $settings, $form_id ) {

    /* Change from the legacy v3 template to a v4 template */
    if( 'default-template' === $settings['template'] ) {
        $settings['template'] = 'zadani';
    }

    return $settings;

}, 10, 2 );

While the PDF master password setting has been removed from the UI, you can manually set this using the following snippet:

add_action( 'gfpdf_pdf_config', function( $settings, $form_id ) {

    /* When security is on we'll use our own master password instead of a random one */
    if( $settings['security'] === 'Yes' ) {
        $settings['master_password'] = 'my password'; /* change this to a secure password */
    }

    return $settings;

}, 10, 2 );

You can also specifically target a form:

add_action( 'gfpdf_pdf_config_2', function( $settings ) { }, 10 );

Source Code #source-code

This filter is located in the Helper_Abstract_Options::get_pdf() method of /src/helper/abstract/Helper_Abstract_Options.php.

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