How can hidden fields be utilized as an alternative to submit buttons for handling PDF file actions in a PHP form?

To utilize hidden fields as an alternative to submit buttons for handling PDF file actions in a PHP form, you can set the value of the hidden field based on the action the user wants to perform (e.g., download, view, or delete). Then, you can use PHP to check the value of the hidden field and perform the corresponding action on the PDF file.

<form method="post" action="handle_pdf.php">
    <input type="hidden" name="action" value="download">
    <input type="hidden" name="pdf_filename" value="example.pdf">
    <button type="submit">Download PDF</button>
</form>

<?php
// handle_pdf.php
if(isset($_POST['action']) && $_POST['action'] == 'download') {
    $pdf_filename = $_POST['pdf_filename'];
    // Code to download the PDF file
}
?>