diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6aee7723..41489efe 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,7 @@ and this project adheres to [Semantic Versioning](https://semver.org).
 - Csv reader avoid notice when the file is empty - [#743](https://github.com/PHPOffice/PhpSpreadsheet/pull/743)
 - Fix print area parser for XLSX reader - [#734](https://github.com/PHPOffice/PhpSpreadsheet/pull/734)
 - Support overriding `DefaultValueBinder::dataTypeForValue()` without overriding `DefaultValueBinder::bindValue()` - [#735](https://github.com/PHPOffice/PhpSpreadsheet/pull/735)
+- Mpdf export can exceed pcre.backtrack_limit - [#637](https://github.com/PHPOffice/PhpSpreadsheet/issues/637)
 
 ## [1.5.0] - 2018-10-21
 
diff --git a/src/PhpSpreadsheet/Writer/Pdf/Mpdf.php b/src/PhpSpreadsheet/Writer/Pdf/Mpdf.php
index ad0964db..08aa6273 100644
--- a/src/PhpSpreadsheet/Writer/Pdf/Mpdf.php
+++ b/src/PhpSpreadsheet/Writer/Pdf/Mpdf.php
@@ -79,11 +79,12 @@ class Mpdf extends Pdf
         $pdf->SetKeywords($this->spreadsheet->getProperties()->getKeywords());
         $pdf->SetCreator($this->spreadsheet->getProperties()->getCreator());
 
-        $pdf->WriteHTML(
-            $this->generateHTMLHeader(false) .
-            $this->generateSheetData() .
-            $this->generateHTMLFooter()
-        );
+        $pdf->WriteHTML($this->generateHTMLHeader(false));
+        $html = $this->generateSheetData();
+        foreach (\array_chunk(\explode(PHP_EOL, $html), 1000) as $lines) {
+            $pdf->WriteHTML(\implode(PHP_EOL, $lines));
+        }
+        $pdf->WriteHTML($this->generateHTMLFooter());
 
         //  Write to file
         fwrite($fileHandle, $pdf->Output('', 'S'));