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cpdf-source
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This commit is contained in:
John Whitington 2022-09-27 15:24:02 +01:00
parent 04bcd8e443
commit 8bb895d2fe
1 changed files with 5 additions and 38 deletions
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43
cpdfaddtext.ml
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@ -172,44 +172,11 @@ let rec string_of_encoding = function
| _ -> error "unknown encoding" | _ -> error "unknown encoding"
let make_font embed encoding fontname = let make_font embed encoding fontname =
let font = unopt (Pdftext.standard_font_of_name ("/" ^ fontname)) in Pdf.Dictionary
let header, width_data, _, chars_and_widths = Pdfstandard14.afm_data font in [("/Type", Pdf.Name "/Font");
let widths = extract_widths (list_of_hashtbl chars_and_widths) in ("/Subtype", Pdf.Name "/TrueType");
let flags = Pdfstandard14.flags_of_standard_font font in ("/Encoding", Pdf.Name ("/" ^ string_of_encoding encoding));
let fontbbox = extract_fontbbox header "FontBBox" in ("/BaseFont", Pdf.Name ("/" ^ fontname))]
let italicangle = extract_num header "ItalicAngle" in
let ascent = try extract_num header "Ascender" with _ -> Pdf.Integer 0 in
let descent = try extract_num header "Descender" with _ -> Pdf.Integer 0 in
let capheight = try extract_num header "CapHeight" with _ -> Pdf.Integer 0 in
let stemv = Pdfstandard14.stemv_of_standard_font font in
let fontdescriptor =
Pdf.Dictionary
[("/Type", Pdf.Name "/FontDescriptor");
("/FontName", Pdf.Name ("/" ^ fontname));
("/Flags", Pdf.Integer flags);
("/FontBBox", Pdf.Array fontbbox);
("/ItalicAngle", italicangle);
("/Ascent", ascent);
("/Descent", descent);
("/CapHeight", capheight);
("/StemV", Pdf.Integer stemv)]
in
if embed then
Pdf.Dictionary
[("/Type", Pdf.Name "/Font");
("/Subtype", Pdf.Name "/Type1");
("/BaseFont", Pdf.Name ("/" ^ fontname));
("/Encoding", Pdf.Name "/WinAnsiEncoding");
("/FirstChar", Pdf.Integer 0);
("/LastChar", Pdf.Integer 255);
("/Widths", Pdf.Array (map (fun x -> Pdf.Integer x) widths));
("/FontDescriptor", fontdescriptor)]
else
Pdf.Dictionary
[("/Type", Pdf.Name "/Font");
("/Subtype", Pdf.Name "/Type1");
("/Encoding", Pdf.Name "/WinAnsiEncoding");
("/BaseFont", Pdf.Name ("/" ^ fontname))]
let extract_page_text only_fontsize pdf _ page = let extract_page_text only_fontsize pdf _ page =
let text_extractor = ref None in let text_extractor = ref None in