DaylistController.php

<?php
namespace App\Controller\Admin;

use Cake\Core\Configure;
use App\Controller\AppController;
use Cake\ORM\TableRegistry;
use Cake\Utility\Hash;




Configure::write('CakePdf', [
    'engine' => 'CakePdf.WkHtmlToPdf',
    'margin' => [
        'bottom' => 15,
        'left' => 50,
        'right' => 30,
        'top' => 45
    ],
    'orientation' => 'landscape',
    'download' => true
]);

class DaylistsController extends AppController
{
    
    
    public $uses = false;


    public function  initialize()
    {
        parent::initialize(); // TODO: Change the autogenerated stub
        $this->loadComponent('RequestHandler');

    }
    
    
  public function view ($id = null) {

        $this->viewBuilder()->options([
            'pdfConfig' => [
                'orientation' => 'portrait',
                'filename' => 'Liste' . $id
            ]
        ]);

    }
}

routes.php

<?php
/**
 * Routes configuration
 *
 * In this file, you set up routes to your controllers and their actions.
 * Routes are very important mechanism that allows you to freely connect
 * different URLs to chosen controllers and their actions (functions).
 *
 * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
 * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
 *
 * Licensed under The MIT License
 * For full copyright and license information, please see the LICENSE.txt
 * Redistributions of files must retain the above copyright notice.
 *
 * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
 * @link          http://cakephp.org CakePHP(tm) Project
 * @license       http://www.opensource.org/licenses/mit-license.php MIT License
 */

use Cake\Core\Plugin;
use Cake\Routing\RouteBuilder;
use Cake\Routing\Router;
use Cake\Routing\Route\DashedRoute;

Router::defaultRouteClass(DashedRoute::class);

Router::extensions(['pdf']);

Router::scope('/', function (RouteBuilder $routes) {

    $routes->connect('/', ['prefix' => 'admin', 'controller' => 'Dashboard', 'action' => 'index']);
    $routes->connect('/admin', ['prefix' => 'admin', 'controller' => 'Dashboard', 'action' => 'index']);
    $routes->connect('/pages/*', ['controller' => 'Pages', 'action' => 'display']);
    $routes->fallbacks(DashedRoute::class);
});




Router::prefix('admin', function ($routes) {

    $routes->connect('/:controller', ['action' => 'index']);
    $routes->connect('/:controller/:action/*', []);
    $routes->fallbacks('DashedRoute');

});


Plugin::routes();