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cpdf-source
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This commit is contained in:
John Whitington 2023-03-06 16:22:50 +00:00
parent c532281c81
commit 0af6af567d
1 changed files with 15 additions and 12 deletions
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27
cpdfcommand.ml
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@ -3376,9 +3376,6 @@ let warn_prerotate range pdf =
let prerotate range pdf = let prerotate range pdf =
Cpdfpage.upright ~fast:args.fast range pdf Cpdfpage.upright ~fast:args.fast range pdf
(* Size of a single object *)
let object_size o = 0
let find_images pdf = let find_images pdf =
let imageobjs = ref [] in let imageobjs = ref [] in
let size = ref 0 in let size = ref 0 in
@ -3386,24 +3383,30 @@ let find_images pdf =
(fun i obj -> (fun i obj ->
match Pdf.lookup_direct pdf "/Subtype" obj with match Pdf.lookup_direct pdf "/Subtype" obj with
| Some (Pdf.Name "/Image") -> | Some (Pdf.Name "/Image") ->
size += object_size obj; size += String.length (Pdfwrite.string_of_pdf_including_data obj);
imageobjs =| i imageobjs =| i
| _ -> ()) | _ -> ())
pdf; pdf;
(!size, !imageobjs) (!size, !imageobjs)
let show_composition filesize json pdf = (* First go: images, fonts, content streams, structure info, link annotations, embedded files *)
let perc x = int_of_float (float_of_int x /. float_of_int filesize *. 100.) in let show_composition_json filesize pdf =
let perc x = float_of_int x /. float_of_int filesize *. 100. in
let marked = null_hash () in let marked = null_hash () in
let images, objs = find_images pdf in let images, objs = find_images pdf in
iter (fun o -> Hashtbl.add marked o ()) objs; iter (fun o -> Hashtbl.add marked o ()) objs;
(*Printf.printf "Fonts: %i bytes (%i%%)\n" !fonts (perc !fonts);*)
Printf.printf "Images: %i bytes (%i%%)\n" images (perc images);
(*Printf.printf "Page data: %i bytes (%i%%)\n" !page_data (perc !page_data);
Printf.printf "XMP metadata: %i bytes (%i%%)\n" !xmp_metadata (perc !xmp_metadata);
let r = !fonts + !images + !page_data + !xmp_metadata in*)
let r = images in let r = images in
Printf.printf "Unclassified: %i bytes (%i%%)\n" r (perc (filesize - r)) `List [`Tuple [`String "Images"; `Int images; `Float (perc images)];
`Tuple [`String "Unclassified"; `Int (filesize - r); `Float (perc (filesize - r))]]
let show_composition filesize json pdf =
let module J = Cpdfyojson.Safe in
let j = show_composition_json filesize pdf in
if json then (flprint (J.pretty_to_string j); flprint "\n") else
match j with
| `List js ->
iter (function `Tuple [`String a; `Int b; `Float c] -> Printf.printf "%s: %i bytes (%.1f%%)\n" a b c | _ -> ()) js
| _ -> ()
let embed_font () = let embed_font () =
match args.font with match args.font with