diff --git a/pdfminer/cmapdb.py b/pdfminer/cmapdb.py
index c3403d1..f7f4a0b 100644
--- a/pdfminer/cmapdb.py
+++ b/pdfminer/cmapdb.py
@@ -131,6 +131,15 @@ class IdentityCMap(CMapBase):
             return ()
 
 
+class IdentityCMapByte(IdentityCMap):
+
+    def decode(self, code):
+        n = len(code)
+        if n:
+            return struct.unpack('>%dB' % n, code)
+        else:
+            return ()
+
 ##  UnicodeMap
 ##
 class UnicodeMap(CMapBase):
@@ -252,6 +261,10 @@ class CMapDB(object):
             return IdentityCMap(WMode=0)
         elif name == 'Identity-V':
             return IdentityCMap(WMode=1)
+        elif name == 'OneByteIdentityH':
+            return IdentityCMapByte(WMode=0)
+        elif name == 'OneByteIdentityV':
+            return IdentityCMapByte(WMode=1)
         try:
             return klass._cmap_cache[name]
         except KeyError:
diff --git a/pdfminer/pdffont.py b/pdfminer/pdffont.py
index 9f24afb..17b80cd 100644
--- a/pdfminer/pdffont.py
+++ b/pdfminer/pdffont.py
@@ -128,7 +128,13 @@ class Type1FontHeaderParser(PSStackParser):
 
 
 NIBBLES = ('0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '.', 'e', 'e-', None, '-')
-IDENTITY_ENCODER = ('Identity-H', 'Identity-V')
+IDENTITY_ENCODER = {'Identity-H':'Identity-H',
+                    'Identity-V':'Identity-V',
+                    'DLIdent-H':'Identity-H',
+                    'DLIdent-V':'Identity-V',
+                    'OneByteIdentityH':'OneByteIdentityH',
+                    'OneByteIdentityV':'OneByteIdentityV',
+                    }
 
 ##  CFFFont
 ##  (Format specified in Adobe Technical Note: #5176
@@ -723,7 +729,7 @@ class PDFCIDFont(PDFFont):
                     raise PDFFontError('CMapName unspecified for encoding')
                 cmap_name = 'unknown'
         if cmap_name in IDENTITY_ENCODER:
-            return CMapDB.get_cmap(cmap_name)
+            return CMapDB.get_cmap(IDENTITY_ENCODER[cmap_name])
         else:
             return CMap()