Caldera Forms PDF Submissions hooks examples - https://calderaforms.com/doc/pdf-submissions-hooks/ -

caldera_forms_api_allow_pdf_download.php

<?php
/**
 *  caldera_forms_api_allow_pdf_download
 * 
 * Control how it is allowed to download the PDF files
 * 
 * @param boolean $allowed
 * @param array $request 
 */
add_filter("caldera_forms_api_allow_pdf_download", function($allowed, $request ) {

	//Create a custom function that return true or false based on your needs
	$allowed = my_custom_function();
	
	return $allowed;
 
}, 10, 2);

caldera_forms_pdf_attachment_filename.php

<?php
/**
 *  caldera_forms_pdf_attachment_filename
 * 
 * NOTE: Editing the filename will store the file on the server. Work will be required to delete them.
 *
 * @param string|null $entry_id Entry ID or null 
 * @param string|null $form_id Form ID or null 
 */
add_filter("caldera_forms_pdf_attachment_filename", function($filename, $entry_id, $form_id) {

	//Set a different filename for a precise Form
	//EDIT FORM ID
	if($form_id = "cf1487563"){
		$filename = "this_precise_form_filename";
	}
	

	return $filename;
 
}, 10, 3);

caldera_forms_pdf_content.php

<?php
/**
 *  caldera_forms_pdf_content
 * 
 * Controls the content displayed by the PDF
 * 
 * @param string $entry_id Entry ID 
 * @param string $form_id Form ID
 * 
 * @return string $content of html
 */
add_filter("caldera_forms_pdf_content", function( $content, $entry_id, $form_id ) {

	//$entry ID can be used to get data of current entry being converted to PDF like :
	$entry = Caldera_Forms::get_entry($entry_id, $form_id);

	//Or we can pass custom data based on Form ID
	if( $form_id === "cf54894444877" ){
		$content .= "<div><p>My extra Footer content</p></div>";
	}
	
	return $content;
 
}, 10, 3);

caldera_forms_pdf_download_filename.php

<?php
/**
 *  caldera_forms_pdf_download_filename
 * 
 * Controls the Filename of PDF being downloads by default $filename = $form_id . "-" . $entry_id . ".pdf"
 * 
 * @param string $entry_id Entry ID 
 * @param string $form_id Form ID
 * 
 * @return string $filename that will be used for the PDF downloads of an entry ending with .pdf
 */
add_filter("caldera_forms_pdf_download_filename", function( $filename, $entry_id, $form_id ) {

	//pass filename based on Form ID
	if( $form_id === "cf54894444877" ){
		$filename = "my_custom_name.pdf";
	}
	
	return $filename;
 
}, 10, 3);

caldera_forms_pdf_download_link_icon.php

<?php
/**
 *  caldera_forms_pdf_download_link_icon
 * 
 * Controls the attributes set in the icon of the download link displayed after Form submissions
 * 
 * @param $form Form configuration array
 * 
 * @return array $attributes [ "src" , "alt", "width", "height", "style", "class"] attributes passed to the icon displayed in download link after submissions
 */
add_filter("caldera_forms_pdf_download_link_icon", function( $attributes, $form ) {

	//pass a different icon based on Form ID
	if( $form['ID'] === "cf54894444877" ){
		$attributes["src"] = "path_to_my_icon.svg";
	}
	
	return $attributes;
 
}, 10, 2);

caldera_forms_pdf_download_link_markup.php

<?php
/**
 *  caldera_forms_pdf_download_link_markup
 * 
 * Controls the Dosnload link displayed after Forms Submissions
 * 
 * @param string $markup html markup to be displayed
 * @param string $href link built from Caldera_Forms_API_Util::url()
 * @param array $img data for image attribute
 * @param array $form Form configuration array
 * @param array $transdata holds submission information
 */
add_filter("caldera_forms_pdf_download_link_markup", function( $markup, $href, $img, $form, $transdata ) {

	//pass a different link based on Form ID
	if( $form['ID'] === "cf54894444877" ){
		$markup = '<br /><div>
                <a href=' . $href . ' target="_blank" class="cf-pdf-download-link">' . __('Download', 'cf_pdf') . '
                <img src="' . $img['src'] . '" alt="' . $img['alt'] . '" class="' . $img['class'] . '" width="' . $img['width'] . '" height="' . $img['height'] . '" style="' . $img['style'] . '" />
                </a></div>';
	}
	
	return $markup;
 
}, 10, 5);

caldera_forms_pdf_upload_dir.php

<?php
/**
 *  caldera_forms_pdf_upload_dir
 * 
 * NOTE: Editing the filename will store the file on the server. Work will be required to delete them.
 *
 * @param array $upload_dir value returned by wp_upload_dir();
 * @param string|null $entry_id Entry ID or null 
 * @param string|null $form_id Form ID or null 
 */
add_filter("caldera_forms_pdf_upload_dir", function($pdf_upload_dir, $upload_dir, $entry_id, $form_id) {

	//EDIT FORM ID
	if($form_id = "cf1487563"){
		$pdf_upload_dir = $upload_dir . "/my_special_folder_in_wp-content_uploads/and_subfolder";
	}
	
	return $pdf_upload_dir;
 
}, 10, 4);