From 997bf7578d8a3bf2f61bc9ec8a3dd34ade669a8e Mon Sep 17 00:00:00 2001
From: "James R. Barlow" <james@purplerock.ca>
Date: Tue, 8 Dec 2020 19:57:10 -0800
Subject: [PATCH] hocrtransform: fix exception if no div ocr_page object

---
 src/ocrmypdf/hocrtransform.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/ocrmypdf/hocrtransform.py b/src/ocrmypdf/hocrtransform.py
index e464f95b..13e266cb 100755
--- a/src/ocrmypdf/hocrtransform.py
+++ b/src/ocrmypdf/hocrtransform.py
@@ -282,13 +282,15 @@ class HocrTransform:
     def _do_line(
         self,
         pdf: Canvas,
-        line,
+        line: Optional[Element],
         elemclass: str,
         fontname: str,
         invisible_text: bool,
         interword_spaces: bool,
         show_bounding_boxes: bool,
     ):
+        if not line:
+            return
         pxl_line_coords = self.element_coordinates(line)
         line_box = self.pt_from_pixel(pxl_line_coords)
         line_height = line_box.y2 - line_box.y1