diff --git a/frontend/document/credocument.lua b/frontend/document/credocument.lua
index fa26cab9d..e8724aec2 100644
--- a/frontend/document/credocument.lua
+++ b/frontend/document/credocument.lua
@@ -127,6 +127,25 @@ function CreDocument:getPageCount()
 	return self._document:getPages()
 end
 
+function CreDocument:getWordFromPosition(pos)
+	local word_box = self._document:getWordFromPos(pos.x, pos.y)
+	if word_box.word then
+		return {
+			word = word_box.word,
+			page = self._document:getCurrentPage(),
+			sbox = {
+				x = word_box.x0, y = word_box.y0,
+				w = word_box.x1 - word_box.x0,
+				h = word_box.y1 - word_box.y0,
+			}
+		}
+	end
+end
+
+function CreDocument:getTextFromPositions(doc, pos0, pos1)
+	DEBUG("getTextFromPositions not finished yet")
+end
+
 function CreDocument:drawCurrentView(target, x, y, rect, pos)
 	tile_bb = Blitbuffer.new(rect.w, rect.h)
 	self._document:drawCurrentPage(tile_bb)
diff --git a/frontend/ui/reader/readerview.lua b/frontend/ui/reader/readerview.lua
index 12573bf18..f4edb981b 100644
--- a/frontend/ui/reader/readerview.lua
+++ b/frontend/ui/reader/readerview.lua
@@ -149,6 +149,11 @@ function ReaderView:screenToPageTransform(pos)
 		else
 			return self:getSinglePagePosition(pos)
 		end
+	else
+		pos.page = self.ui.document:getCurrentPage()
+		local last_y = self.ui.document:getCurrentPos()
+		DEBUG("document has no pages at", pos)
+		return pos
 	end
 end
 
@@ -162,6 +167,8 @@ function ReaderView:pageToScreenTransform(page, rect)
 		else
 			return self:getSinglePageRect(rect)
 		end
+	else
+		return rect
 	end
 end
 
diff --git a/koreader-base b/koreader-base
index 756cd1ed8..1f45c486f 160000
--- a/koreader-base
+++ b/koreader-base
@@ -1 +1 @@
-Subproject commit 756cd1ed83c598824cfc8678e9cbd488ef0c9c2b
+Subproject commit 1f45c486f7ddbe43156ec15633f2b188aba126cb