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More info in PDF/UA verifications

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John Whitington
2025-03-24 15:59:28 +00:00
parent 0c1ff247b5
commit 19736bc147
2 changed files with 14 additions and 11 deletions
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1
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@@ -13,6 +13,7 @@ o -obj JSON output
* -print-dict-entry, -remove-dict-entry and -replace-dict-entry
can follow a chain from each found dictionary entry
* Much more of the PDF/UA Matterhorn verification suite implemented
* PDF/UA verifier now returns extra information with most failures
* Font lister now returns the font itself
o Allow %objnum in output name for -extract-images
* -show-boxes, -trim-marks, -table-of-contents, -add-text

24
cpdfua.ml
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@@ -502,14 +502,14 @@ let matterhorn_10_001 _ _ pdf =
| Some d ->
begin match Pdf.lookup_direct pdf "/Differences" d with
| Some diffs -> check_diffs diffs (* b) 2 *)
| None -> merror ()
| None -> merror_str "No /Differences"
end
| None ->
match Pdf.lookup_direct pdf "/Subtype" font with
| Some (Pdf.Name "/Type0") ->
(* c) *)
unimpl ()
| _ -> merror ()
| _ -> merror_str "Not a Type 0 font"
in
let fonts = map (fun (_, _, _, _, _, x) -> x) (Cpdffont.list_fonts pdf (ilist 1 (Pdfpage.endpage pdf))) in
iter
@@ -525,7 +525,8 @@ let matterhorn_10_001 _ _ pdf =
(* Natural language for text in page content cannot be determined. *)
let matterhorn_11_001 _ _ pdf =
match Pdf.lookup_chain pdf pdf.Pdf.trailerdict ["/Root"; "/Lang"] with
| Some (Pdf.String "") | None -> merror_str "No top-level /Lang"
| Some (Pdf.String "") -> merror_str "Top-level /Lang is empty"
| None -> merror_str "No top-level /Lang"
| Some _ -> ()
(* Natural language for text in Alt, ActualText and E attributes cannot be
@@ -572,7 +573,7 @@ let rec headings_list_of_tree (E (n, cs)) =
let matterhorn_14_002 st _ _ =
match headings_list_of_tree st with
| [] | "/H1"::_ -> ()
| _ -> merror ()
| x::_ -> merror_str x
(* Numbered heading levels in descending sequence are skipped (Example: <H3>
follows directly after <H1>). *)
@@ -664,7 +665,8 @@ let matterhorn_20_002 _ _ pdf =
match Pdf.lookup_chain pdf pdf.Pdf.trailerdict ["/Root"; "/OCProperties"; "/D"],
Pdf.lookup_chain pdf pdf.Pdf.trailerdict ["/Root"; "/OCProperties"; "/D"; "/Name"]
with
| Some _, (Some (Pdf.String "") | None) -> merror ()
| Some _, Some (Pdf.String "") -> merror_str "empty string"
| Some _, None -> merror_str "not present"
| _ -> ()
(* An AS entry appears in an Optional Content Configuration Dictionary. *)
@@ -864,12 +866,12 @@ let matterhorn_28_005 _ _ pdf =
begin match List.assoc_opt (string_of_int i) parent_tree with
| Some d ->
begin match Pdf.lookup_direct pdf "/Alt" d with
| None -> merror ()
| None -> merror_str "no /Alt"
| _ -> ()
end
| _ -> merror ()
| _ -> merror_str "no parent tree entry"
end
| _ -> merror ())
| _ -> merror_str "no /StructParent")
missing_tu
(* An annotation with subtype undefined in ISO 32000 does not meet 7.18.1. *)
@@ -926,11 +928,11 @@ let matterhorn_28_010 _ _ pdf =
| Some d ->
begin match Pdf.lookup_direct pdf "/S" d with
| Some (Pdf.Name "/Form") -> ()
| _ -> merror ()
| _ -> merror_str "type is not form"
end
| _ -> merror ()
| _ -> merror_str "not found in parent tree"
end
| _ -> merror ()
| _ -> merror_str "not in structure tree"
end
| _ -> ())
pdf