Developer API, Hooks & Shortcodes

Extend and customize Blog to PDF Exporter programmatically with actions, filters, and shortcodes.

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1. Shortcode Usage

To place the PDF export button anywhere inside block content, page builders (Elementor, Divi), or custom templates:

[blog_to_pdf_button]

Or within PHP template files:

<?php echo do_shortcode('[blog_to_pdf_button]'); ?>

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2. Filters & Hooks

Modify PDF HTML Layout

Filter the raw HTML markup before PDF rendering:

add_filter('b2p_pdf_content_html', function($html, $post_id) {
    // Append custom disclaimer or styling
    $html .= '<div class="custom-footer">Certified by Enterprise Compliance</div>';
    return $html;
}, 10, 2);

Alter Paper Size Programmatically

add_filter('b2p_pdf_page_size', function($size, $post_id) {
    if (get_post_meta($post_id, '_is_whitepaper', true)) {
        return 'Letter';
    }
    return 'A4';
}, 10, 2);

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3. AJAX Endpoint

PDF downloads are processed via authenticated AJAX with nonce verification:

• Action: b2p_export_pdf
• Method: GET
• Parameters:
  • post_id: Integer ID of the target WordPress post.
  • nonce: Security token generated via wp_create_nonce('b2p_export_nonce_' . $post_id).