Disable text rendering and font loading from the Page abstraction, this code will have to be moved into a separate Box instance

src/PDF/Pages.hs

@@ -23,6 +23,7 @@ import qualified Data.Map as Map (empty, fromList, insert, lookup, toList)
 import Data.Text (Text)
 import PDF.Box (Box(..))
 import PDF.CMap (cMap)
+import PDF.Content (Content(..))
 import qualified PDF.Content as Content (parse)
 import PDF.Content.Text (renderText)
 import PDF.Encoding (encoding)
@@ -43,10 +44,11 @@ import Text.Printf (printf)
 type CachedFonts = Map ObjectId Font
 type FontCache m = (MonadState CachedFonts m, PDFContent m)
 data Page = Page {
-      contents :: [Text]
+      contents :: [Content]
     , source :: ObjectId
   }
 
+{-
 getFontDictionary :: PDFContent m => Object -> m Dictionary
 getFontDictionary pageObj =
     (pageObj >// ["Resources", "Font"] >>= getDictionary)
@@ -80,10 +82,7 @@ loadFonts = foldM addFont Map.empty . Map.toList
     addFont output (name, Reference (IndirectObjCoordinates {objectId})) =
       flip (Map.insert name) output <$> cache loadFont objectId
     addFont output _ = return output
-
+-}
-several :: PDFContent m => Object -> m [Object]
-several (Direct (Array l)) =  mapM castObject l
-several object = return [object]
 
 pagesList :: PDFContent m => m [ObjectId]
 pagesList = do
@@ -99,20 +98,19 @@ getReferences objects = do
     Reference (IndirectObjCoordinates {objectId}) -> [objectId]
     _ -> []
 
-extractText :: FontCache m => Object -> m [Text]
+extractContent :: FontCache m => Object -> m [Content]
-extractText pageObj = do
+extractContent pageObj = do
-  fonts <- loadFonts =<< getFontDictionary pageObj
+  --fonts <- loadFonts =<< getFontDictionary pageObj
-  objects <- pageObj >./ "Contents" >>= several
+  pageObj >./ "Contents" >>= several >>= mapM loadContent
-  concat <$> mapM (loadContent fonts) objects
   where
-    loadContent fonts object =
+    loadContent object = r Clear object >>= (either fail return . Content.parse)
-        r Clear object
+    several (Direct (Array l)) =  mapM castObject l
-      >>= (either fail return . Content.parse)
+    several object = return [object]
-      >>= renderText fonts
+      -- >>= renderText fonts
 
 loadPage :: FontCache m => ObjectId -> m Page
 loadPage source = do
-  contents <- extractText =<< objectById source
+  contents <- extractContent =<< objectById source
   return $ Page {contents, source}
 
 data Pages = Pages