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PDF/UA-2 images

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John Whitington
2024-10-01 16:44:44 +01:00
parent e03558c4af
commit a7d0fcad56
1 changed files with 16 additions and 2 deletions
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18
cpdfimage.ml
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@@ -518,7 +518,21 @@ let image_of_input ?subformat ?title ~process_struct_tree fobj i =
| _, (Some Cpdfua.PDFUA1 | Some Cpdfua.PDFUA2) | true, _ -> true
| _ -> false
in
if structinfo then
if process_struct_tree || subformat = Some Cpdfua.PDFUA2 then
begin
let str = Pdf.addobj pdf Pdf.Null in
let figure = Pdf.addobj pdf Pdf.Null in
let parent_tree = Pdf.addobj pdf Pdf.Null in
let namespace = Pdf.addobj pdf (Pdf.Dictionary [("/NS", Pdf.String "http://iso.org/pdf2/ssn")]) in
let document = Pdf.addobj pdf Pdf.Null in
Pdf.addobj_given_num pdf (document, Pdf.Dictionary [("/K", Pdf.Array [Pdf.Indirect figure]); ("/P", Pdf.Indirect str); ("/S", Pdf.Name "/Document"); ("/NS", Pdf.Indirect namespace)]);
Pdf.addobj_given_num pdf (parent_tree, Pdf.Dictionary [("/Nums", Pdf.Array [Pdf.Integer 1; Pdf.Array [Pdf.Indirect figure]])]);
Pdf.addobj_given_num pdf (figure, Pdf.Dictionary [("/K", Pdf.Array [Pdf.Integer 0]); ("/P", Pdf.Indirect document); ("/S", Pdf.Name "/Figure"); ("/Alt", Pdf.String title)]);
Pdf.addobj_given_num pdf (str, Pdf.Dictionary [("/Namespaces", Pdf.Array [Pdf.Indirect namespace]); ("/Type", Pdf.Name "/StructTreeRoot");
("/K", Pdf.Array [Pdf.Indirect document]); ("/ParentTree", Pdf.Indirect parent_tree)]);
Pdf.replace_chain pdf ["/Root"] ("/StructTreeRoot", (Pdf.Indirect str))
end
else if subformat = Some Cpdfua.PDFUA1 then
begin
let str = Pdf.addobj pdf Pdf.Null in
let figure = Pdf.addobj pdf Pdf.Null in
@@ -526,7 +540,7 @@ let image_of_input ?subformat ?title ~process_struct_tree fobj i =
Pdf.addobj_given_num pdf (parent_tree, Pdf.Dictionary [("/Nums", Pdf.Array [Pdf.Integer 1; Pdf.Array [Pdf.Indirect figure]])]);
Pdf.addobj_given_num pdf (figure, Pdf.Dictionary [("/K", Pdf.Array [Pdf.Integer 0]); ("/P", Pdf.Indirect str); ("/S", Pdf.Name "/Figure"); ("/Alt", Pdf.String title)]);
Pdf.addobj_given_num pdf (str, Pdf.Dictionary [("/Type", Pdf.Name "/StructTreeRoot"); ("/K", Pdf.Array [Pdf.Indirect figure]); ("/ParentTree", Pdf.Indirect parent_tree)]);
Pdf.replace_obj pdf "/Root,/StructTreeRoot" (Pdf.Indirect str)
Pdf.replace_chain pdf ["/Root"] ("/StructTreeRoot", (Pdf.Indirect str))
end;
let ops =
(if structinfo then [Pdfops.Op_BDC ("/Figure", Pdf.Dictionary [("/MCID", Pdf.Integer 0)])] else [])