Add workaround for PDF with IndirectObject as the

rotation value. GitHub #261.

Signed-off-by: Roberto Rosario <roberto.rosario.gonzalez@gmail.com>

HISTORY.rst

@@ -1,3 +1,8 @@
+2.6.5 (2017-XX-XX)
+==================
+- Add workaround for PDF with IndirectObject as the 
+  rotation value. GitHub #261.
+
 2.6.4 (2017-07-26)
 ==================
 - Add missing replacements of reverse to resolve_url.

mayan/apps/converter/backends/python.py

@@ -92,7 +92,9 @@ class Python(ConverterBase):
         if self.mime_type == 'application/pdf':
             pdf = PyPDF2.PdfFileReader(self.file_object)
             try:
-                result = pdf.getPage(page_number - 1).get('/Rotate')
+                result = pdf.getPage(page_number - 1).get('/Rotate', 0)
+                if isinstance(result, PyPDF2.generic.IndirectObject):
+                    result = result.getObject()
             except Exception as exception:
                 self.file_object.seek(0)
                 pdf = PyPDF2.PdfFileReader(self.file_object)