Added plumbing for recrypting split PDFs

cpdf.ml

@@ -1192,7 +1192,11 @@ let really_write_pdf ~preserve_objstm ~create_objstm ?(encryption = None) ?(cpdf
                 raise (Pdf.PDFError "linearizer failed")
               end
 
-let fast_write_split_pdfs enc splitlevel original_filename linearize ?(cpdflin = None) preserve_objstm create_objstm sq nobble spec main_pdf pagenums pdf_pages =
+let fast_write_split_pdfs
+  recrypt was_encrypted was_decrypted_with_owner enc splitlevel
+  original_filename linearize ?(cpdflin = None) preserve_objstm
+  create_objstm sq nobble spec main_pdf pagenums pdf_pages
+=
   let marks = Pdfmarks.read_bookmarks main_pdf in
     iter2
       (fun number pagenums ->
@@ -1205,10 +1209,16 @@ let fast_write_split_pdfs enc splitlevel original_filename linearize ?(cpdflin =
       (indx pagenums)
       pagenums
 
-let split_pdf enc original_filename chunksize linearize ~cpdflin ~preserve_objstm ~create_objstm ~squeeze nobble spec pdf =
+let split_pdf
+  recrypt was_encrypted was_decrypted_with_owner enc original_filename
+  chunksize linearize ~cpdflin ~preserve_objstm ~create_objstm ~squeeze
+  nobble spec pdf
+=
   let pdf_pages = Pdfpage.pages_of_pagetree pdf in
-    fast_write_split_pdfs enc 0 original_filename linearize preserve_objstm
-      create_objstm squeeze nobble spec pdf (splitinto chunksize (indx pdf_pages)) pdf_pages
+    fast_write_split_pdfs
+      recrypt was_encrypted was_decrypted_with_owner
+      enc 0 original_filename linearize preserve_objstm create_objstm
+      squeeze nobble spec pdf (splitinto chunksize (indx pdf_pages)) pdf_pages
 
 (* Return list, in order, a *set* of page numbers of bookmarks at a given level *)
 let bookmark_pages level pdf =
@@ -1217,15 +1227,20 @@ let bookmark_pages level pdf =
       (function l when l.Pdfmarks.level = level -> Some (Pdfpage.pagenumber_of_target pdf l.Pdfmarks.target) | _ -> None)
       (Pdfmarks.read_bookmarks pdf))
 
-let split_at_bookmarks original_filename linearize ~cpdflin ~preserve_objstm ~create_objstm ~squeeze nobble level spec pdf =
+let split_at_bookmarks
+  recrypt was_encrypted was_decrypted_with_owner original_filename linearize
+  ~cpdflin ~preserve_objstm ~create_objstm ~squeeze nobble level spec pdf
+=
   let pdf_pages = Pdfpage.pages_of_pagetree pdf in
     let points = bookmark_pages level pdf in
       let points =
         lose (fun x -> x <= 0 || x > Pdfpage.endpage pdf) (map pred points)
       in
         let pts = splitat points (indx pdf_pages) in
-      fast_write_split_pdfs None level
-        original_filename linearize preserve_objstm create_objstm squeeze nobble spec pdf pts pdf_pages
+          fast_write_split_pdfs
+            recrypt was_encrypted was_decrypted_with_owner None level
+            original_filename linearize preserve_objstm create_objstm
+            squeeze nobble spec pdf pts pdf_pages
 
 (* Called from cpdflib.ml - different from above *)
 let split_on_bookmarks pdf level =

cpdf.mli

@@ -208,7 +208,21 @@ val stamp : position -> bool -> bool -> bool -> int list -> Pdf.t -> Pdf.t -> Pd
 the fiven level, writing to files with names given by [spec] (see
 cpdfmanual.pdf). [nobble] is undocumented and should be false. If [linearize]
 is true, the files will be linearized. *)
-val split_at_bookmarks : string -> bool -> cpdflin:string option -> preserve_objstm:bool -> create_objstm:bool -> squeeze:bool -> (Pdf.t -> Pdf.t) -> int -> string -> Pdf.t -> unit
+val split_at_bookmarks :
+  bool ->
+  bool ->
+  bool ->
+  string ->
+  bool ->
+  cpdflin:string option ->
+  preserve_objstm:bool ->
+  create_objstm:bool ->
+  squeeze:bool ->
+  (Pdf.t -> Pdf.t) ->
+  int ->
+  string ->
+  Pdf.t ->
+  unit
 
 (** Split a PDF on bookmarks of a given level or below. Level 0 is top level. *)
 val split_on_bookmarks : Pdf.t -> int -> Pdf.t list
@@ -220,8 +234,22 @@ each output is linearized. If [preserve_objstm] is true, object streams will
 be used if the input file had them. If [create_objstm] is true, object
 streams will be created in any event. [printf] and [nobble] are
 undocumented and should be false. *)
-val split_pdf : Pdfwrite.encryption option -> string -> int -> bool -> cpdflin:string option ->
-  preserve_objstm:bool -> create_objstm:bool -> squeeze:bool -> (Pdf.t -> Pdf.t) -> string -> Pdf.t -> unit
+val split_pdf :
+  bool ->
+  bool ->
+  bool ->
+  Pdfwrite.encryption option ->
+  string ->
+  int ->
+  bool ->
+  cpdflin:string option ->
+  preserve_objstm:bool ->
+  create_objstm:bool ->
+  squeeze:bool ->
+  (Pdf.t -> Pdf.t) ->
+  string ->
+  Pdf.t ->
+  unit
 
 (** {2 Listing fonts} *)
 

cpdfcommand.ml

@@ -3066,6 +3066,7 @@ let go () =
                      Pdfwrite.permissions = banlist_of_args ()}
               in
                 Cpdf.split_pdf
+                  args.recrypt args.was_encrypted args.was_decrypted_with_owner
                   enc args.original_filename args.chunksize args.linearize args.cpdflin
                   args.preserve_objstm args.preserve_objstm (*yes--always create if preserving *)
                   args.squeeze nobble output_spec pdf
@@ -3209,7 +3210,9 @@ let go () =
               | [(InFile f, _, _, _, _)] -> f
               | _ -> ""
             in
-              Cpdf.split_at_bookmarks filename args.linearize args.cpdflin args.preserve_objstm
+              Cpdf.split_at_bookmarks
+                args.recrypt args.was_encrypted args.was_decrypted_with_owner
+                filename args.linearize args.cpdflin args.preserve_objstm
                 (* Yes *)args.preserve_objstm args.squeeze nobble level output_spec pdf
         | Stdout -> error "Can't split to standard output"
         | NoOutputSpecified -> error "Split: No output format specified"