I've been trying the following code to add a break line when a product title has more than 60 characters:
    if ($item->getProductType() == 'bundle') {
        foreach ($item->getChildren() as $child) {
            $childProduct = $this->productRepositoryInterface->getById(
                $child->getProductId(),
                false,
                $quote->getStoreId()
            );
            $childName = $childProduct->getName();
            $bundleText[] = $childName;
        }
        $line[] = [
            'text' => wordwrap($childName,60,"<br>\n"),
            'feed' => $feed + 10,
            'isProductLine' => true,
            'addToTop' => 5,
            'font' => 'regular',
            'font_size' => $fontSize
        ];
    }
    $optionLineCount = 0;
    if (isset($optionText)) {
        $optionLineCount += count($optionText);
    }
    if (isset($bundleText)) {
        $optionLineCount += count($bundleText);
    } 
The result of this is (unwanted result):
RSM-408A: 8-Port Real-time Redundant Ring Switch with metal<br> case (+12 ~ +48 VDC, non-isolation)
Instead of (the desired result):
RSM-408A: 8-Port Real-time Redundant Ring Switch with metal
case (+12 ~ +48 VDC, non-isolation)
Any ideas of what i'm still missing?
 
    
` does not work in pdf's. I'm quite sure you need to use `"\n"` – Andreas Nov 27 '19 at 07:58
` tag is, Maybe you looking for `\r` – slier Nov 27 '19 at 07:58
` – Shiz Nov 27 '19 at 07:59
still does not render the desired result – Julian Murillo Nov 27 '19 at 08:33