From f86c4fccf4ad7a96fa8f35106a10de36350e4fb9 Mon Sep 17 00:00:00 2001
From: "James R. Barlow" <jim@purplerock.ca>
Date: Fri, 11 May 2018 22:31:24 -0700
Subject: [PATCH] optimize: don't alter >8 bpc images

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

diff --git a/src/ocrmypdf/_optimize.py b/src/ocrmypdf/_optimize.py
index 67b15565..0a9916b7 100644
--- a/src/ocrmypdf/_optimize.py
+++ b/src/ocrmypdf/_optimize.py
@@ -133,6 +133,9 @@ def extract_image(*, doc, pike, root, log, image, xref, jbig2s,
         return False
     filtdp = filtdps[0]
 
+    if bpc > 8:
+        return False  # Don't mess with wide gamut images
+
     if bpc == 1 and filtdp[0] != '/JBIG2Decode' and jbig2enc.available():
         if filtdp[0] == '/CCITTFaxDecode':
             data = image.read_raw_bytes()