Filter uncanny-continuing-education-credits

learndash_pdf_creator

Filters the value of pdf creator. Filters the PDF creator's name before it's set for a LearnDash certificate.

add_filter( 'learndash_pdf_creator', $callback, 10, 1 );

Description

Allows modification of the PDF creator name used in certificate generation. Developers can dynamically change who is listed as the creator of the PDF document, providing the `TCPDF` instance and certificate ID for context.

Usage

add_filter( 'learndash_pdf_creator', 'your_function_name', 10, 1 );

Return Value

The filtered value.

Examples

<?php
/**
 * Change the PDF creator name to include the site URL.
 *
 * This function modifies the PDF creator string to append the WordPress site URL
 * to the default creator name. This can be useful for identifying the origin
 * of generated PDFs.
 *
 * @param string $pdf_creator The original PDF creator name.
 * @param TCPDF $pdf         The TCPDF class instance.
 * @param int    $cert_id     The certificate post ID.
 * @return string The modified PDF creator name.
 */
function my_learndash_custom_pdf_creator( $pdf_creator, $pdf, $cert_id ) {
    // Get the site URL.
    $site_url = get_bloginfo( 'url' );

    // Append the site URL to the existing creator name.
    // Ensure we don't duplicate if the site URL is somehow already present.
    if ( strpos( $pdf_creator, $site_url ) === false ) {
        $pdf_creator .= ' - ' . $site_url;
    }

    // Return the modified creator name.
    return $pdf_creator;
}
add_filter( 'learndash_pdf_creator', 'my_learndash_custom_pdf_creator', 10, 3 );

Placement

This code should be placed in the functions.php file of your active theme, a custom plugin, or using a code snippets plugin.

Source Code

src/includes/tcpdf-certificate-code.php:553

/**
		 * Filters the value of pdf creator.
		 *
		 * @param string $pdf_creator The name of the PDF creator.
		 * @param TCPDF $pdf `TCPDF` class instance.
		 * @param int $cert_id Certificate post ID.
		 */
		$pdf->SetCreator( apply_filters( 'learndash_pdf_creator', PDF_CREATOR, $pdf, $cert_args['cert_id'] ) );

		/**
		 * Filters the name of the pdf author.
		 *
		 * @param string $pdf_author_name PDF author name.
		 * @param TCPDF $pdf `TCPDF` class instance.
		 * @param int $cert_id Certificate post ID.
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