Php 如何使用Knp Snappy bundle设置pdf的页面大小

我有一个代码，用于使用KNP Snappy Bundlede和Symfony2生成PDF。这就是它看起来的样子：

我的问题是，我想设置页边距并将页面大小从A4更改为A1。我已经找到了这么多的例子，但每次我尝试，它似乎不再生成pdf。我怎样才能解决这个问题并使其发挥作用

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提前感谢您的帮助。

您可以在选项中设置几个标志：

$options = [
  'page-size' => 'A1',
  'margin-top' => 10,
  'margin-right' => 10,
  'margin-bottom' => 10,
  'margin-left' => 10,
];

$this->container->get('knp_snappy.pdf')->generateFromHtml(
  $this->templating->render(
    $twigInclude,
    [
      'htmlFiles' => $htmlFiles,
      'headlines' => $headlines,
    ]
  ),
  $folderHistory . '/reports/' . $filename . '.pdf',
  $options,
  true // this flag will overwrite existing file
);

$options = [
  'page-size' => 'A1',
  'margin-top' => 10,
  'margin-right' => 10,
  'margin-bottom' => 10,
  'margin-left' => 10,
];

$this->container->get('knp_snappy.pdf')->generateFromHtml(
  $this->templating->render(
    $twigInclude,
    [
      'htmlFiles' => $htmlFiles,
      'headlines' => $headlines,
    ]
  ),
  $folderHistory . '/reports/' . $filename . '.pdf',
  $options,
  true // this flag will overwrite existing file
);