diff --git a/apps/documents/conf/settings.py b/apps/documents/conf/settings.py
index 7aa854d90f..973fef1c56 100644
--- a/apps/documents/conf/settings.py
+++ b/apps/documents/conf/settings.py
@@ -63,6 +63,9 @@ MULTIPAGE_PREVIEW_SIZE = getattr(settings, 'DOCUMENTS_MULTIPAGE_PREVIEW_SIZE', '
 THUMBNAIL_SIZE = getattr(settings, 'DOCUMENTS_THUMBNAIL_SIZE', '50x50')
 DISPLAY_SIZE = getattr(settings, 'DOCUMENTS_DISPLAY_SIZE', '1200')
 RECENT_COUNT = getattr(settings, 'DOCUMENTS_RECENT_COUNT', 20)
+ZOOM_PERCENT_STEP = getattr(settings, 'DOCUMENTS_ZOOM_PERCENT_STEP', 50)
+ZOOM_MAX_LEVEL = getattr(settings, 'DOCUMENTS_ZOOM_MAX_LEVEL', 200)
+ZOOM_MIN_LEVEL = getattr(settings, 'DOCUMENTS_ZOOM_MIN_LEVEL', 50)
 
 # Transformations
 AVAILABLE_TRANSFORMATIONS = getattr(settings, 'DOCUMENTS_AVAILABLE_TRANSFORMATIONS', available_transformations)
diff --git a/apps/documents/views.py b/apps/documents/views.py
index ba2beca0bc..91fcae87bd 100644
--- a/apps/documents/views.py
+++ b/apps/documents/views.py
@@ -36,6 +36,9 @@ from documents.conf.settings import DEFAULT_TRANSFORMATIONS
 from documents.conf.settings import UNCOMPRESS_COMPRESSED_LOCAL_FILES
 from documents.conf.settings import UNCOMPRESS_COMPRESSED_STAGING_FILES
 from documents.conf.settings import STORAGE_BACKEND
+from documents.conf.settings import ZOOM_PERCENT_STEP
+from documents.conf.settings import ZOOM_MAX_LEVEL
+from documents.conf.settings import ZOOM_MIN_LEVEL
 
 from documents import PERMISSION_DOCUMENT_CREATE, \
     PERMISSION_DOCUMENT_CREATE, PERMISSION_DOCUMENT_PROPERTIES_EDIT, \
@@ -1031,9 +1034,10 @@ def document_page_zoom_in(request, document_page_id):
     # Parse the query string and get the zoom value
     # parse_qs return a dictionary whose values are lists
     zoom = int(urlparse.parse_qs(query).get('zoom', ['100'])[0])
-    zoom += 50
-    if zoom > 200:
-        zoom = 200
+
+    zoom += ZOOM_PERCENT_STEP
+    if zoom > ZOOM_MAX_LEVEL:
+        zoom = ZOOM_MAX_LEVEL
     
     return HttpResponseRedirect(reverse(view, args=[document_page.pk]) + u'?zoom=%s' % zoom)
 
@@ -1048,8 +1052,9 @@ def document_page_zoom_out(request, document_page_id):
     # Parse the query string and get the zoom value
     # parse_qs return a dictionary whose values are lists
     zoom = int(urlparse.parse_qs(query).get('zoom', ['100'])[0])
-    zoom -= 50
-    if zoom < 50:
-        zoom = 50
+    print 'zoom', zoom
+    zoom -= ZOOM_PERCENT_STEP
+    if zoom < ZOOM_MIN_LEVEL:
+        zoom = ZOOM_MIN_LEVEL
 
     return HttpResponseRedirect(reverse(view, args=[document_page.pk]) + u'?zoom=%s' % zoom)
diff --git a/apps/main/views.py b/apps/main/views.py
index 73f56f9792..b9c7b399bf 100644
--- a/apps/main/views.py
+++ b/apps/main/views.py
@@ -46,6 +46,9 @@ def check_settings(request):
         {'name': 'DOCUMENTS_ENABLE_SINGLE_DOCUMENT_UPLOAD', 'value': documents_settings.ENABLE_SINGLE_DOCUMENT_UPLOAD},
         {'name': 'DOCUMENTS_UNCOMPRESS_COMPRESSED_LOCAL_FILES', 'value': documents_settings.UNCOMPRESS_COMPRESSED_LOCAL_FILES},
         {'name': 'DOCUMENTS_UNCOMPRESS_COMPRESSED_STAGING_FILES', 'value': documents_settings.UNCOMPRESS_COMPRESSED_STAGING_FILES},
+        {'name': 'DOCUMENTS_ZOOM_PERCENT_STEP', 'value': documents_settings.ZOOM_PERCENT_STEP},
+        {'name': 'DOCUMENTS_ZOOM_MAX_LEVEL', 'value': documents_settings.ZOOM_MAX_LEVEL},
+        {'name': 'DOCUMENTS_ZOOM_MIN_LEVEL', 'value': documents_settings.ZOOM_MIN_LEVEL},
 
         #Groups
         {'name': 'DOCUMENTS_GROUP_MAX_RESULTS', 'value': documents_settings.GROUP_MAX_RESULTS},
diff --git a/settings.py b/settings.py
index 3554cc6bfe..dd64379da8 100644
--- a/settings.py
+++ b/settings.py
@@ -194,6 +194,9 @@ TEMPLATE_CONTEXT_PROCESSORS = (
 #DOCUMENTS_AVAILABLE_TRANSFORMATIONS = {}
 #example: DOCUMENTS_DEFAULT_TRANSFORMATIONS = [{'name':'rotate', 'arguments':"{'degrees':270}"}]
 #DOCUMENTS_RECENT_COUNT = 20
+#DOCUMENTS_ZOOM_PERCENT_STEP = 50
+#DOCUMENTS_ZOOM_MAX_LEVEL = 200
+#DOCUMENTS_ZOOM_MIN_LEVEL = 50
 
 # Groups
 #DOCUMENTS_GROUP_MAX_RESULTS = 20