diff --git a/cpdf.ml b/cpdf.ml
index ad9d11c..1fa43c1 100644
--- a/cpdf.ml
+++ b/cpdf.ml
@@ -4196,4 +4196,16 @@ let add_page_labels pdf style prefix startval range =
         ranges;
         Pdfpagelabels.write pdf !labels
 
+(* Parse the new content to make sure syntactically ok, append
+ * as required. Rewrite the content *)
+let append_page_content_page fast s before pdf n page =
+  let ops =
+    Pdfops.parse_stream pdf page.Pdfpage.resources [bytes_of_string s] 
+  in
+    (if before then Pdfpage.prepend_operators else Pdfpage.postpend_operators)
+    pdf ops ~fast page
+
+let append_page_content s before fast range pdf =
+  process_pages (append_page_content_page fast s before pdf) pdf range
+
 
diff --git a/cpdf.mli b/cpdf.mli
index e602d47..e9de765 100644
--- a/cpdf.mli
+++ b/cpdf.mli
@@ -447,3 +447,6 @@ val call_cpdflin : string -> string -> string -> string -> int
 val debug : bool ref
 
 val extract_text : float option -> Pdf.t -> int list -> string 
+
+val append_page_content : string -> bool -> bool -> int list -> Pdf.t -> Pdf.t
+
diff --git a/cpdfcommand.ml b/cpdfcommand.ml
index 5c94f7c..a941483 100644
--- a/cpdfcommand.ml
+++ b/cpdfcommand.ml
@@ -3524,18 +3524,6 @@ let trim_marks_page pdf n page =
 let trim_marks range pdf =
   Cpdf.process_pages (trim_marks_page pdf) pdf range
 
-(* Parse the new content to make sure syntactically ok, append
- * as required. Rewrite the content *)
-let append_page_content_page s before pdf n page =
-  let ops =
-    Pdfops.parse_stream pdf page.Pdfpage.resources [bytes_of_string s] 
-  in
-    (if before then Pdfpage.prepend_operators else Pdfpage.postpend_operators)
-    pdf ops ~fast:args.fast page
-
-let append_page_content s before range pdf =
-  Cpdf.process_pages (append_page_content_page s before pdf) pdf range
-
 (* Main function *)
 let go () =
   match args.op with
@@ -4418,7 +4406,7 @@ let go () =
       let pdf = get_single_pdf args.op false in
       let range = parse_pagespec pdf (get_pagespec ()) in
       let before = match x with Prepend _ -> true | _ -> false in
-        write_pdf false (append_page_content s before range pdf)
+        write_pdf false (Cpdf.append_page_content s before args.fast range pdf)
 
 let parse_argv () =
   if args.debug then