From 8ba4968c4825ff5d4d4d138841759979f78b89db Mon Sep 17 00:00:00 2001
From: "James R. Barlow" <jim@purplerock.ca>
Date: Sat, 26 May 2018 01:54:25 -0700
Subject: [PATCH] pdfinfo: more robustness

---
 src/ocrmypdf/pdfinfo.py | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/ocrmypdf/pdfinfo.py b/src/ocrmypdf/pdfinfo.py
index e53ecc86..3c26e053 100644
--- a/src/ocrmypdf/pdfinfo.py
+++ b/src/ocrmypdf/pdfinfo.py
@@ -297,9 +297,15 @@ class ImageInfo:
             self._type = 'image'
 
         self._bpc = int(pim.bits_per_component)
-        self._enc = FRIENDLY_ENCODING.get(pim.filters[0], 'image')
+        try:
+            self._enc = FRIENDLY_ENCODING.get(pim.filters[0], 'image')
+        except IndexError as e:
+            self._enc = '?'
 
-        self._color = FRIENDLY_COLORSPACE.get(pim.colorspace, '?')
+        try:
+            self._color = FRIENDLY_COLORSPACE.get(pim.colorspace, '?')
+        except NotImplementedError:
+            self._color = '?'
         if self._enc == Encoding.jpeg2000:
             self._color = Colorspace.jpeg2000