private function getTemplateDrawingTasksAndFormatPlaceholders(Document $document)
{
$this->formatConvertAttributes($document);
$this->getHeader()->format($document);
$this->getFooter()->format($document);
$this->getWatermark()->format($document);
$tasks = new DrawingTaskHeap();
$this->getDrawingTasksFromComplexAttributes($document, $tasks);
$this->footer->collectOrderedDrawingTasks($document, $tasks);
$this->header->collectOrderedDrawingTasks($document, $tasks);
$this->watermark->collectOrderedDrawingTasks($document, $tasks);
$this->footer->removeAll();
$this->header->removeAll();
$this->watermark->removeAll();
return $tasks;
}