diff --git a/cpdfimage.ml b/cpdfimage.ml
index 7f83782..96b5db6 100644
--- a/cpdfimage.ml
+++ b/cpdfimage.ml
@@ -468,30 +468,26 @@ let process pdf ~q ~qlossless ~path_to_convert =
           let out = Filename.temp_file "cpdf" "convertin" ^ ".jpg" in
           let out2 = Filename.temp_file "cpdf" "convertout" ^ ".jpg" in
           let fh = open_out_bin out in
-            (* 1. Write data to temp file *)
             let size =
               begin match s with Pdf.Stream {contents = _, Pdf.Got d} -> Pdfio.bytes_to_output_channel fh d; bytes_size d | _ -> 0 end
             in
             close_out fh;
-            (* 2. Process with convert. *)
             let retcode =
               let command = 
                 (Filename.quote_command path_to_convert
                   [out; "-quality"; string_of_int q ^ "%"; out2])
               in
-                Printf.printf "%S\n" command;
+                (*Printf.printf "%S\n" command;*)
                 Sys.command command
             in
             if retcode = 0 then
               begin
-                (* 3. If return code 0, and output file produced, read it in *)
                 let result = open_in_bin out2 in
                 let newsize = in_channel_length result in
                 if newsize < size then
-                  (* 4. Replace the data, but only if it was smaller *)
+                  (*Printf.printf "%i -> %i\n" size newsize;*)
                   reference := Pdf.add_dict_entry dict "/Length" (Pdf.Integer newsize), Pdf.Got (Pdfio.bytes_of_input_channel result)
               end;
-            (* 5. Clean up *)
             Sys.remove out;
             Sys.remove out2
       | _ -> ()