From fd25a6a08768051d2c16c6a558e6e33e8eb70fc9 Mon Sep 17 00:00:00 2001
From: Jeremy Singer-Vine <jsvine@gmail.com>
Date: Tue, 21 Nov 2017 23:23:09 -0500
Subject: [PATCH] Fix issue #41 ...

... in which PDF-object-referenced cropboxes/mediaboxes weren't being
fully resolved. Thanks to @dankeemahill for flagging!
---
 README.md              |  2 +-
 pdfplumber/_version.py |  2 +-
 pdfplumber/page.py     | 27 ++++++++++++++++-----------
 3 files changed, 18 insertions(+), 13 deletions(-)

diff --git a/README.md b/README.md
index 377059f6..2bb3cd2f 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# PDFPlumber `v0.5.5`
+# PDFPlumber `v0.5.6`
 
 Plumb a PDF for detailed information about each text character, rectangle, and line. Plus: Table extraction and visual debugging.
 
diff --git a/pdfplumber/_version.py b/pdfplumber/_version.py
index 7ecddb22..fd1ae936 100644
--- a/pdfplumber/_version.py
+++ b/pdfplumber/_version.py
@@ -1,2 +1,2 @@
-version_info = (0, 5, 5)
+version_info = (0, 5, 6)
 __version__ = '.'.join(map(str, version_info))
diff --git a/pdfplumber/page.py b/pdfplumber/page.py
index b784deda..4ba2bdfb 100644
--- a/pdfplumber/page.py
+++ b/pdfplumber/page.py
@@ -3,6 +3,7 @@
 from .container import Container
 from copy import copy
 
+from pdfminer.pdftypes import resolve_all
 from six import string_types
 import re
 lt_pat = re.compile(r"^LT")
@@ -19,22 +20,26 @@ def __init__(self, pdf, page_obj, page_number=None, initial_doctop=0):
         self.page_obj.rotate = self.rotation
         self.initial_doctop = self.decimalize(initial_doctop)
 
-        cropbox = page_obj.attrs.get("CropBox", page_obj.attrs.get("MediaBox"))
-        self.cropbox = self.decimalize(cropbox)
+        cropbox = page_obj.attrs.get("CropBox")
+        mediabox = page_obj.attrs.get("MediaBox")
+
+        self.cropbox = self.decimalize(resolve_all(cropbox)) if cropbox is not None else None
+        self.mediabox = self.decimalize(resolve_all(mediabox) or self.cropbox)
+        m = self.mediabox
 
         if self.rotation in [ 90, 270 ]:
             self.bbox = self.decimalize((
-                min(cropbox[1], cropbox[3]),
-                min(cropbox[0], cropbox[2]),
-                max(cropbox[1], cropbox[3]),
-                max(cropbox[0], cropbox[2]),
+                min(m[1], m[3]),
+                min(m[0], m[2]),
+                max(m[1], m[3]),
+                max(m[0], m[2]),
             ))
         else:
             self.bbox = self.decimalize((
-                min(cropbox[0], cropbox[2]),
-                min(cropbox[1], cropbox[3]),
-                max(cropbox[0], cropbox[2]),
-                max(cropbox[1], cropbox[3]),
+                min(m[0], m[2]),
+                min(m[1], m[3]),
+                max(m[0], m[2]),
+                max(m[1], m[3]),
             ))
 
     def decimalize(self, x):
@@ -92,7 +97,7 @@ def point2coord(pt):
         ]
 
         def process_object(obj):
-            attr = dict((k, (v if k in NON_DECIMALIZE else d(v)))
+            attr = dict((k, (v if (k in NON_DECIMALIZE or v == None) else d(v)))
                 for k, v in obj.__dict__.items()
                     if k not in IGNORE)