diff --git a/defaults.lua b/defaults.lua
index ee28b2422..458067345 100644
--- a/defaults.lua
+++ b/defaults.lua
@@ -78,13 +78,14 @@ DKOPTREADER_CONFIG_DOC_DEFAULT_LANG_CODE = "eng"  		-- that have filenames start
 
 -- crereader font sizes
 -- feel free to add more entries in this list
-DCREREADER_CONFIG_FONT_SIZES = {16, 20, 22, 24, 28, 32, 38, 44}  -- range from 16 to 44
+DCREREADER_CONFIG_FONT_SIZES = {16, 20, 22, 24, 26, 28, 30, 34, 38, 44}  -- option range from 16 to 44
+DCREREADER_CONFIG_DEFAULT_FONT_SIZE = 22    -- default font size
 
 -- crereader margin sizes
 -- margin {left, top, right, bottom} in pixels
-DCREREADER_CONFIG_MARGIN_SIZES_SMALL = {5, 5, 5, 5}
-DCREREADER_CONFIG_MARGIN_SIZES_MEDIUM = {15, 10, 15, 10}
-DCREREADER_CONFIG_MARGIN_SIZES_LARGE = {25, 10, 25, 10}
+DCREREADER_CONFIG_MARGIN_SIZES_SMALL = {15, 5, 15, 5}
+DCREREADER_CONFIG_MARGIN_SIZES_MEDIUM = {22, 10, 22, 10}
+DCREREADER_CONFIG_MARGIN_SIZES_LARGE = {30, 10, 30, 10}
 
 -- gesture detector defaults
 DGESDETECT_DISABLE_DOUBLE_TAP = true
diff --git a/frontend/ui/reader/readercoptlistener.lua b/frontend/ui/reader/readercoptlistener.lua
index 317c9dfe8..cc396c05b 100644
--- a/frontend/ui/reader/readercoptlistener.lua
+++ b/frontend/ui/reader/readercoptlistener.lua
@@ -22,13 +22,12 @@ function ReaderCoptListener:onReadSettings(config)
 	end
 	
 	local copt_margins = config:readSetting("copt_page_margins")
-	if copt_margins then
-		table.insert(self.ui.postInitCallback, function()
-			-- FIXME: SetPageMargins will mess up current reading position
-			-- for now we simply disable this feature.
-		    --self.ui:handleEvent(Event:new("SetPageMargins", copt_margins))
-		end)
+	if copt_margins == nil then
+		copt_margins = DCREREADER_CONFIG_MARGIN_SIZES_MEDIUM
 	end
+	table.insert(self.ui.postInitCallback, function()
+	    self.ui:handleEvent(Event:new("SetPageMargins", copt_margins))
+	end)
 end
 
 return ReaderCoptListener