Added -squeeze-no-pagedata, -squeeze-no-recompress

This commit is contained in:
John Whitington 2020-05-06 17:00:55 +01:00
parent a239cf4edb
commit 35e91e78db
4 changed files with 32 additions and 12 deletions

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@ -289,7 +289,7 @@ let squeeze_all_content_streams pdf =
pdf
(* We run squeeze enough times for the number of objects to not change *)
let squeeze ?logto pdf =
let squeeze ?logto ?(pagedata=true) ?(recompress=true) pdf =
let log x =
match logto with
None -> print_string x; flush stdout
@ -307,11 +307,17 @@ let squeeze ?logto pdf =
n := Pdf.objcard pdf;
log (Printf.sprintf "Squeezing... Down to %i objects\n" (Pdf.objcard pdf));
done;
if pagedata then
begin
log (Printf.sprintf "Squeezing page data and xobjects\n");
squeeze_all_content_streams pdf;
end;
if recompress then
begin
log (Printf.sprintf "Recompressing document\n");
Pdfcodec.flate_level := 9;
ignore (recompress_pdf pdf)
end
with
e ->
raise

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@ -425,7 +425,7 @@ val blackfills : float * float * float -> int list -> Pdf.t -> Pdf.t
val draft : string option -> bool -> int list -> Pdf.t -> Pdf.t
(** Squeeze a PDF *)
val squeeze : ?logto:string -> Pdf.t -> unit
val squeeze : ?logto:string -> ?pagedata:bool -> ?recompress:bool -> Pdf.t -> unit
(**/**)

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@ -3,7 +3,7 @@ let demo = false
let noncomp = false
let major_version = 2
let minor_version = 4
let version_date = "(devel, 30th January 2020)"
let version_date = "(devel, 6th May 2020)"
open Pdfutil
open Pdfio
@ -427,6 +427,8 @@ type args =
mutable labelstartval : int;
mutable labelsprogress : bool;
mutable squeeze : bool;
mutable squeeze_recompress : bool;
mutable squeeze_pagedata: bool;
mutable original_filename : string;
mutable was_encrypted : bool;
mutable cpdflin : string option;
@ -527,6 +529,8 @@ let args =
labelstartval = 1;
labelsprogress = false;
squeeze = false;
squeeze_recompress = true;
squeeze_pagedata = true;
original_filename = "";
was_encrypted = false;
cpdflin = None;
@ -642,7 +646,7 @@ let reset_arguments () =
(* Do not reset original_filename or cpdflin or was_encrypted or
* was_decrypted_with_owner or recrypt or producer or creator or
* path_to_ghostscript or gs_malformed or gs_quiet, since we want these to work across
* ANDs. Or squeeze: a little odd, but we want it to happen on eventual output. *)
* ANDs. Or squeeze options: a little odd, but we want it to happen on eventual output. *)
let get_pagespec () =
match args.inputs with
@ -1490,6 +1494,12 @@ let setocgrenamefrom s =
let setocgrenameto s =
args.ocgrenameto <- s
let setsqueezepagedata () =
args.squeeze_pagedata <- false
let setsqueezerecompress () =
args.squeeze_recompress <- false
let whingemalformed () =
prerr_string "Command line must be of exactly the form\ncpdf <infile> -gs <path> -gs-malformed-force -o <outfile>\n";
exit 1
@ -2119,6 +2129,8 @@ and specs =
("-gs-quiet", Arg.Unit setgsquiet, " Make gs go into quiet mode");
("-squeeze", Arg.Unit setsqueeze, " Squeeze");
("-squeeze-log-to", Arg.String setsqueezelogto, " Squeeze log location");
("-squeeze-no-pagedata", Arg.Unit setsqueezepagedata, " Don't recompress pages");
("-squeeze-no-recompress", Arg.Unit setsqueezerecompress, " Don't recompress streams");
(* Just for error reporting *)
("-gs-malformed-force", Arg.Unit whingemalformed, "");
(* These items are not documented yet, but will be soon *)
@ -2513,7 +2525,7 @@ let write_pdf ?(encryption = None) ?(is_decompress=false) mk_id pdf =
if not is_decompress then
begin
ignore (Cpdf.recompress_pdf pdf);
if args.squeeze then Cpdf.squeeze ?logto:!logto pdf;
if args.squeeze then Cpdf.squeeze ~pagedata:args.squeeze_pagedata ~recompress:args.squeeze_recompress ?logto:!logto pdf;
end;
Pdf.remove_unreferenced pdf;
really_write_pdf ~is_decompress mk_id pdf outname
@ -2529,7 +2541,7 @@ let write_pdf ?(encryption = None) ?(is_decompress=false) mk_id pdf =
if not is_decompress then
begin
ignore (Cpdf.recompress_pdf pdf);
if args.squeeze then Cpdf.squeeze ?logto:!logto pdf;
if args.squeeze then Cpdf.squeeze ~pagedata:args.squeeze_pagedata ~recompress:args.squeeze_recompress ?logto:!logto pdf;
Pdf.remove_unreferenced pdf
end;
really_write_pdf ~encryption ~is_decompress mk_id pdf temp;
@ -2651,7 +2663,7 @@ let fast_write_split_pdfs
(stem original_filename) startpage endpage
in
Pdf.remove_unreferenced pdf;
if sq then Cpdf.squeeze ?logto:!logto pdf;
if sq then Cpdf.squeeze ~pagedata:args.squeeze_pagedata ~recompress:args.squeeze_recompress ?logto:!logto pdf;
really_write_pdf ~encryption:enc (not (enc = None)) pdf name)
(indx pagenums)
pagenums

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@ -1,5 +1,7 @@
%Document \n in bookmark files
%Document -labels-progress
%Document -open-at-page-{fit} now take pagespec not just number
%Document -squeeze-no-recompress -squeeze-no-pagedata
\documentclass{book}
\usepackage{palatino}
\usepackage{microtype}