urls - How to secure PDF link when share link to someone?

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im trying to secure PDF link when I share the link with someone, below is my functions.php code,

function register_download_brochure_menu() {
    add_menu_page(
        'Download Brochure',
        'Download Brochure',
        'manage_options',
        'download-brochure',
        'display_download_brochure_page',
        'dashicons-download', // Icon
        25 // Position
    );
}
add_action('admin_menu', 'register_download_brochure_menu');

function display_download_brochure_page() {
    ?>
    <div class="wrap">
        <h1>Download Brochure</h1>
        <form method="get" action="<?php echo home_url('/wp-content/uploads/2024/07/My-LetterPad.pdf'); ?>" target="_blank">
            <button type="submit" class="button button-primary">Download Brochure</button>
        </form>
    </div>
    <?php
}

function enqueue_admin_styles() {
    wp_enqueue_style('admin-styles', get_template_directory_uri() . '/admin-styles.css');
}
add_action('admin_enqueue_scripts', 'enqueue_admin_styles');

above is my code that display button Download Brochure, and when i click on that button, its open new link, http://localhost/my-project/wp-content/uploads/2024/07/My-LetterPad.pdf, now i copy this link and shared with another user, but here i want, if another user can paste this link in browser, then first its ask for login and then display the pdf URL,

本文标签： urlsHow to secure PDF link when share link to someone