diff --git a/AUTHORS b/AUTHORS
index c24d744..78fbe53 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -1,3 +1,7 @@
 Jose Miguel Esparza <jesparza AT eternal-todo.com>
 http://eternal-todo.com
-http://twitter.com/EternalTodo
\ No newline at end of file
+http://twitter.com/EternalTodo
+
+Sebastian Deiss <sebastian DOT deiss AT atos DOT net>
+https://pages.atos.net/de/sc/
+https://github.com/SebastianDeiss
diff --git a/peepdf/PDFCore.py b/peepdf/PDFCore.py
index 8e35177..ccd01b4 100644
--- a/peepdf/PDFCore.py
+++ b/peepdf/PDFCore.py
@@ -2685,7 +2685,8 @@ def setRawStream(self, newStream):
 
 
 class PDFObjectStream (PDFStream):
-    def __init__(self, rawDict='', rawStream='', elements={}, rawNames={}, compressedObjectsDict={}):
+    def __init__(self, rawDict='', rawStream='', elements={}, rawNames={}, compressedObjectsDict={}, parser=None):
+        self.parser = parser
         self.type = 'stream'
         self.dictType = ''
         self.errors = []
@@ -3247,8 +3248,8 @@ def resolveReferences(self):
                 numbers = re.findall('\d{1,10}', offsetsSection)
                 if numbers != [] and len(numbers) % 2 == 0:
                     for i in range(0, len(numbers), 2):
-                        offset = numbers[i+1]
-                        ret = PDFParser.readObject(objectsSection[offset:])
+                        offset = int(numbers[i + 1])
+                        ret = self.parser.readObject(objectsSection[offset:])
                         if ret[0] == -1:
                             if isForceMode:
                                 object = None
@@ -7417,7 +7418,7 @@ def createPDFStream(self, dict, stream):
                 name = ret[1]
         if "/Type" in elements and elements['/Type'].getValue() == '/ObjStm':
             try:
-                pdfStream = PDFObjectStream(dict, stream, elements, rawNames, {})
+                pdfStream = PDFObjectStream(dict, stream, elements, rawNames, {}, parser=self)
             except Exception as e:
                 errorMessage = 'Error creating PDFObjectStream'
                 if e.message != '':