diff --git a/Shared/large_pdf.patch b/Shared/large_pdf.patch
new file mode 100644
index 0000000..81e0a09
--- /dev/null
+++ b/Shared/large_pdf.patch
@@ -0,0 +1,43 @@
+diff --git a/Shared/lib/python3.4/site-packages/PyPDF2/pdf.py b/Shared/lib/python3.4/site-packages/PyPDF2/pdf.py
+index 1987ccd..5522e4b 100644
+--- a/Shared/lib/python3.4/site-packages/PyPDF2/pdf.py
++++ b/Shared/lib/python3.4/site-packages/PyPDF2/pdf.py
+@@ -1925,21 +1910,26 @@ class PdfFileReader(object):
+             if debug: print(("  x:", x, "%x"%ord(x)))
+             if stream.tell() < 2:
+                 raise utils.PdfReadError("EOL marker not found")
+-            step = min(stream.tell()-2, 8*1024)
+-            stream.seek(-step, 1)
+-            x = stream.read(step)
+-            if b_('\n') in x or b_('\r') in x:
+-                eol = max(x.rfind(b_('\n')), x.rfind(b_('\r')))
+-                while eol+1 < len(x) and x[eol+1] in (b_('\n'), b_('\r')):
+-                    eol += 1
+-                line = x[eol+1:] + line
+-                while x[eol:eol+1] in (b_('\n'), b_('\r')):
+-                    eol -= 1
+-                stream.seek(-step+eol, 1)
++            stream.seek(-2, 1)
++            if x == b_('\n') or x == b_('\r'): ## \n = LF; \r = CR
++                crlf = False
++                while x == b_('\n') or x == b_('\r'):
++                    if debug:
++                        if ord(x) == 0x0D: print("  x is CR 0D")
++                        elif ord(x) == 0x0A: print("  x is LF 0A")
++                    x = stream.read(1)
++                    if x == b_('\n') or x == b_('\r'): # account for CR+LF
++                        stream.seek(-1, 1)
++                        crlf = True
++                    if stream.tell() < 2:
++                        raise utils.PdfReadError("EOL marker not found")
++                    stream.seek(-2, 1)
++                stream.seek(2 if crlf else 1, 1) #if using CR+LF, go back 2 bytes, else 1
+                 break
+             else:
++                if debug: print("  x is neither")
+                 line = x + line
+-                stream.seek(-step, 1)
++                if debug: print(("  RNEL line:", line))
+         if debug: print("leaving RNEL")
+         return line
+ 
diff --git a/Shared/update.sh b/Shared/update.sh
index 42162d5..001b106 100755
--- a/Shared/update.sh
+++ b/Shared/update.sh
@@ -1,10 +1,18 @@
-HOME=`pwd`/home
-mkdir $HOME
-export PIP_DOWNLOAD_CACHE=$HOME/../../pip_cache
-pip3 install -r ../../openmedialibrary/requirements-shared.txt -I --user 
+#!/bin/bash
+set -e
+cd `dirname $0`
+export PIP_DOWNLOAD_CACHE=`pwd`/../../pip_cache
 mkdir old
-mv lib bin old
-mv home/.local/lib lib
-mv home/.local/bin bin
-rm ./lib/python3.4/site-packages/tornado/speedups.cpython-34m.so
-rm -r home old
+test -e lib && mv lib old/
+test -e bin && mv bin old/
+
+rm -rf p34
+
+virtualenv -p /usr/bin/python3.4 p34
+p34/bin/pip3 install -r ../../openmedialibrary/requirements-shared.txt
+
+mkdir -p lib/python3.4
+mv p34/lib/python3.4/site-packages lib/python3.4/site-packages
+patch -p2 -R < large_pdf.patch
+
+rm -r p34 old