Moving things

cpdf.ml

@@ -4567,3 +4567,67 @@ let trim_marks_page fast pdf n page =
 
 let trim_marks ?(fast=false) pdf range =
   process_pages (trim_marks_page fast pdf) pdf range
+
+let rec remove_all_text_ops pdf resources content =
+  let is_textop = function
+    Pdfops.Op_Tj _ | Pdfops.Op_' _ | Pdfops.Op_'' _ | Pdfops.Op_TJ _ -> true
+  | _ -> false
+  in
+    let content' =
+      let ops = Pdfops.parse_operators pdf resources content in
+        Pdfops.stream_of_ops
+          (option_map (function x -> if is_textop x then None else Some x) ops) 
+    in
+      [content']
+
+let remove_all_text_page pdf p =
+  let resources = p.Pdfpage.resources in
+  let content = p.Pdfpage.content in
+    process_xobjects pdf p remove_all_text_ops;
+    {p with Pdfpage.content = remove_all_text_ops pdf resources content}, pdf
+
+let remove_all_text range pdf =
+  let pages = Pdfpage.pages_of_pagetree pdf in
+    let pagenums = indx pages in
+    let pdf = ref pdf in
+    let pages' = ref [] in
+      iter2 
+        (fun p pagenum ->
+          let p', pdf' =
+            if mem pagenum range
+              then remove_all_text_page !pdf p
+              else p, !pdf
+          in
+            pdf := pdf';
+            pages' =| p')
+        pages
+        pagenums;
+      Pdfpage.change_pages true !pdf (rev !pages')
+
+let remove_dict_entry pdf key =
+  Pdf.objselfmap
+    (function
+       (Pdf.Dictionary _ as d) | (Pdf.Stream _ as d) ->
+         Pdf.remove_dict_entry d key
+     | x -> x)
+    pdf;
+  pdf.Pdf.trailerdict <- Pdf.remove_dict_entry pdf.Pdf.trailerdict key
+
+let remove_clipping_ops pdf resources content =
+  let ops = Pdfops.parse_operators pdf resources content in
+    let rec process a = function
+      Pdfops.Op_W::Pdfops.Op_n::t -> process (Pdfops.Op_n::a) t
+    | h::t -> process (h::a) t
+    | [] -> rev a
+    in
+      [Pdfops.stream_of_ops (process [] ops)] 
+
+let remove_clipping pdf range =
+  let remove_clipping_page _ page =
+    let content' =
+      remove_clipping_ops pdf page.Pdfpage.resources page.Pdfpage.content
+    in
+      process_xobjects pdf page remove_clipping_ops;
+      {page with Pdfpage.content = content'}
+  in
+    process_pages remove_clipping_page pdf range

cpdf.mli

@@ -431,6 +431,8 @@ val draft : string option -> bool -> int list -> Pdf.t -> Pdf.t
 (** Squeeze a PDF *)
 val squeeze : ?logto:string -> ?pagedata:bool -> ?recompress:bool -> Pdf.t -> unit
 
+val remove_all_text : int list -> Pdf.t -> Pdf.t 
+
 (**/**)
 
 val process_xobjects : Pdf.t -> Pdfpage.t -> (Pdf.t -> Pdf.pdfobject -> Pdf.pdfobject list -> Pdf.pdfobject list) -> unit
@@ -464,3 +466,6 @@ val ocg_order_all : Pdf.t -> unit
 
 val stamp_as_xobject : Pdf.t -> int list -> Pdf.t -> Pdf.t * string
 
+val remove_dict_entry : Pdf.t -> string -> unit
+
+val remove_clipping : Pdf.t -> int list -> Pdf.t 

cpdfcommand.ml

@@ -3406,26 +3406,6 @@ let list_spot_colours pdf =
        | _ -> ())
     pdf
 
-let remove_clipping_ops pdf resources content =
-  let ops = Pdfops.parse_operators pdf resources content in
-    let rec process a = function
-      Pdfops.Op_W::Pdfops.Op_n::t -> process (Pdfops.Op_n::a) t
-    | h::t -> process (h::a) t
-    | [] -> rev a
-    in
-      [Pdfops.stream_of_ops (process [] ops)] 
-
-let remove_clipping pdf range =
-  let remove_clipping_page _ page =
-    let content' =
-      remove_clipping_ops pdf page.Pdfpage.resources page.Pdfpage.content
-    in
-      Cpdf.process_xobjects pdf page remove_clipping_ops;
-      {page with Pdfpage.content = content'}
-  in
-    Cpdf.process_pages remove_clipping_page pdf range
-
-
 (* Indent bookmarks in each file by one and add a title bookmark pointing to the first page. *)
 let add_bookmark_title filename use_title pdf =
   let title =
@@ -3468,43 +3448,6 @@ let create_pdf pages pagesize =
     let pdf, pageroot = Pdfpage.add_pagetree (many page args.createpdf_pages) (Pdf.empty ()) in
       Pdfpage.add_root pageroot [] pdf
 
-let rec remove_all_text_ops pdf resources content =
-  let is_textop = function
-    Pdfops.Op_Tj _ | Pdfops.Op_' _ | Pdfops.Op_'' _ | Pdfops.Op_TJ _ -> true
-  | _ -> false
-  in
-    let content' =
-      let ops = Pdfops.parse_operators pdf resources content in
-        Pdfops.stream_of_ops
-          (option_map (function x -> if is_textop x then None else Some x) ops) 
-    in
-      [content']
-
-let remove_all_text_page pdf p =
-  let resources = p.Pdfpage.resources in
-  let content = p.Pdfpage.content in
-    Cpdf.process_xobjects pdf p remove_all_text_ops;
-    {p with Pdfpage.content = remove_all_text_ops pdf resources content}, pdf
-
-let remove_all_text range pdf =
-  let pages = Pdfpage.pages_of_pagetree pdf in
-    let pagenums = indx pages in
-    let pdf = ref pdf in
-    let pages' = ref [] in
-      iter2 
-        (fun p pagenum ->
-          let p', pdf' =
-            if mem pagenum range
-              then remove_all_text_page !pdf p
-              else p, !pdf
-          in
-            pdf := pdf';
-            pages' =| p')
-        pages
-        pagenums;
-      Pdfpage.change_pages true !pdf (rev !pages')
-
-
 let write_json output pdf =
   match output with
   | NoOutputSpecified ->
@@ -4339,14 +4282,7 @@ let go () =
           (map Pdfpagelabels.string_of_pagelabel (Pdfpagelabels.read pdf))
   | Some (RemoveDictEntry key) ->
       let pdf = get_single_pdf args.op true in
-        (* 1. Process all objects *)
-        Pdf.objselfmap
-          (function
-             (Pdf.Dictionary _ as d) | (Pdf.Stream _ as d) ->
-               Pdf.remove_dict_entry d key
-           | x -> x)
-          pdf;
-        (* FIXME: We might like to do the trailer dictionary too *)
+        Cpdf.remove_dict_entry pdf key;
         write_pdf false pdf
   | Some ListSpotColours ->
       let pdf = get_single_pdf args.op false in
@@ -4354,7 +4290,7 @@ let go () =
   | Some RemoveClipping ->
       let pdf = get_single_pdf args.op false in
         let range = parse_pagespec pdf (get_pagespec ()) in
-          write_pdf false (remove_clipping pdf range)
+          write_pdf false (Cpdf.remove_clipping pdf range)
   | Some CreateMetadata ->
       let pdf = get_single_pdf args.op false in
         write_pdf false (Cpdf.create_metadata pdf)
@@ -4379,7 +4315,7 @@ let go () =
   | Some RemoveAllText ->
       let pdf = get_single_pdf args.op false in
       let range = parse_pagespec pdf (get_pagespec ()) in
-        write_pdf false (remove_all_text range pdf)
+        write_pdf false (Cpdf.remove_all_text range pdf)
   | Some ShowBoxes ->
       let pdf = get_single_pdf args.op false in
       let range = parse_pagespec pdf (get_pagespec ()) in

cpdfmanual.tex

@@ -2343,10 +2343,10 @@ recommended when file size is the sole consideration.
   \noindent\verb!cpdf -list-spot-colors in.pdf!
 
   \vspace{1.5mm}
-  \noindent\verb!cpdf -remove-dict-entry in.pdf -o out.pdf!
+  \noindent\verb!cpdf -remove-dict-entry <dictionary key> in.pdf -o out.pdf!
 
   \vspace{1.5mm}
-  \noindent\verb!cpdf -remove-clipping in.pdf -o out.pdf!
+  \noindent\verb!cpdf -remove-clipping [<range>] in.pdf -o out.pdf!
   \end{framed}}
   \section{Draft Documents}
 \index{draft}