diff --git a/djvu.c b/djvu.c
index 93fbd5dc1..f06eab25f 100644
--- a/djvu.c
+++ b/djvu.c
@@ -199,11 +199,10 @@ static int openPage(lua_State *L) {
 
 	/* djvulibre counts page starts from 0 */
 	page->page_ref = ddjvu_page_create_by_pageno(doc->doc_ref, pageno - 1);
+	if (! page->page_ref)
+		return luaL_error(L, "cannot open page #%d", pageno);
 	while (! ddjvu_page_decoding_done(page->page_ref))
 		handle(L, doc->context, TRUE);
-	if (! page->page_ref) {
-		return luaL_error(L, "cannot open page #%d", pageno);
-	}
 
 	page->doc = doc;
 	page->num = pageno;
@@ -255,8 +254,20 @@ static int getOriginalPageSize(lua_State *L) {
 
 	lua_pushnumber(L, info.width);
 	lua_pushnumber(L, info.height);
+	lua_pushnumber(L, info.dpi);
 
-	return 2;
+	return 3;
+}
+
+static int getPageInfo(lua_State *L) {
+	DjvuDocument *doc = (DjvuDocument*) luaL_checkudata(L, 1, "djvudocument");
+	int pageno = luaL_checkint(L, 2);
+	ddjvu_page_t *djvu_page;
+	djvu_page = ddjvu_page_create_by_pageno(doc->doc_ref, pageno - 1);
+	if (!djvu_page)
+		return luaL_error(L, "cannot create djvu_page #%d", pageno);
+	while (! ddjvu_page_decoding_done(djvu_page))
+		handle(L, doc->context, TRUE);
 }
 
 /*
@@ -527,6 +538,7 @@ static const struct luaL_Reg djvudocument_meth[] = {
 	{"getToc", getTableOfContent},
 	{"getPageText", getPageText},
 	{"getOriginalPageSize", getOriginalPageSize},
+	{"getPageInfo", getPageInfo},
 	{"close", closeDocument},
 	{"getCacheSize", getCacheSize},
 	{"cleanCache", cleanCache},
diff --git a/djvureader.lua b/djvureader.lua
index 012c0ccc2..01b39a04b 100644
--- a/djvureader.lua
+++ b/djvureader.lua
@@ -69,3 +69,48 @@ function DJVUReader:invertTextYAxel(pageno, text_table)
 	end
 	return text_table
 end
+
+-- used in UniReader:showMenu()
+---[[
+function DJVUReader:_drawReadingInfo()
+	local secs, usecs = util.gettime()
+	local width, height = G_width, G_height
+	local numpages = self.doc:getPages()
+	local load_percent = self.pageno/numpages
+	-- changed to be the same font group as originaly intended
+	local face = Font:getFace("rifont", 20)
+	--local page_width, page_height, page_dpi = self.doc:getOriginalPageSize(self.pageno)
+	local page_width, page_height, page_dpi = self.doc:getPageInfo(self.pageno)
+
+	-- display memory on top of page
+	fb.bb:paintRect(0, 0, width, 40+6*2, 0)
+	renderUtf8Text(fb.bb, 10, 15+6, face,
+		"M: "..
+		math.ceil( self.cache_current_memsize / 1024 ).."/"..math.ceil( self.cache_max_memsize / 1024 ).."k, "..
+		math.ceil( self.doc:getCacheSize() / 1024 ).."/"..math.ceil( self.cache_document_size / 1024 ).."k, "..
+		os.date("%a %d %b %Y %T")..
+		" ["..BatteryLevel().."]", true)
+	renderUtf8Text(fb.bb, 10, 15+6+22, face,
+		"Gamma:"..tostring(self.globalgamma)..", "..
+		tostring(page_width).."x"..tostring(page_height)..", "..
+		tostring(page_dpi).."dpi", true)
+
+	-- display reading progress on bottom of page
+	local ypos = height - 50
+	fb.bb:paintRect(0, ypos, width, 50, 0)
+	ypos = ypos + 15
+	local cur_section = self:getTocTitleOfCurrentPage()
+	if cur_section ~= "" then
+		cur_section = "Sec: "..cur_section
+	end
+	renderUtf8Text(fb.bb, 10, ypos+6, face,
+		"Page: "..self.pageno.."/"..numpages.."   "..cur_section, true)
+
+	ypos = ypos + 15
+	blitbuffer.progressBar(fb.bb, 10, ypos, width-20, 15,
+							5, 4, load_percent, 8)
+	local nsecs, nusecs = util.gettime()
+	local diff = (nsecs - secs)*1000000 + nusecs - usecs
+	print("DJVUReader:_drawReadingInfo(): "..tostring(diff).." us")
+end
+--]]