From a26a584812d7e9b1f4d1d98797ea95e10b1e52d6 Mon Sep 17 00:00:00 2001
From: Alexander <homm86@gmail.com>
Date: Mon, 22 May 2017 19:38:38 +0300
Subject: [PATCH] Do not raise SyntaxError for wrong chunks (just ignore them)

---
 PIL/PngImagePlugin.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/PIL/PngImagePlugin.py b/PIL/PngImagePlugin.py
index 5e5eb14c7..e329a6c0d 100644
--- a/PIL/PngImagePlugin.py
+++ b/PIL/PngImagePlugin.py
@@ -113,7 +113,8 @@ class ChunkStream(object):
             length = i32(s)
 
         if not is_cid(cid):
-            raise SyntaxError("broken PNG file (chunk %s)" % repr(cid))
+            if not ImageFile.LOAD_TRUNCATED_IMAGES:
+                raise SyntaxError("broken PNG file (chunk %s)" % repr(cid))
 
         return cid, pos, length