I tried the code you supplied in pdfmm: if the found font has all the required GIDs, and the standard14 Helvetica actually doesn't have all of them so I used Arial as a fallback, I can already handle the text correctly, see the attachment.
Cheers,
Francesco
On Sun, 24 Apr 2022 at 13:45, zyx <z...@gmx.us> wrote:
> PdfMemDocument doc;
> PoDoFo::PdfPage* pPage;
> pPage = doc.CreatePage( PoDoFo::PdfPage::CreateStandardPageSize(
> PoDoFo::ePdfPageSize_A4, false ) );
> PdfFont * pFont = doc.CreateFont( "Helvetica", false, false,
> false, PdfEncodingFactory::GlobalWin1250EncodingInstance());
> TVecFilters filters;
> PdfMemStream output(pPage->GetObject());
> output.BeginAppend(filters);
> PdfPainter painter;
> painter.SetPage(pPage);
> painter.SetFont(pFont);
>
> PdfString str;
> std::string ustr;
>
> str = PdfString("ěščřABCĚŠČŘ");
> ustr = str.GetStringUtf8();
> printf ("1) '%s'\n", ustr.c_str());
> pFont->WriteStringToStream(str, &output);
> pFont->WriteStringToStream(ustr, &output);
>
> painter.DrawText(10, 780, str);
> painter.DrawText(10, 740, ustr);
>
> str = PdfString((const pdf_utf8 *) "ěščřABCĚŠČŘ");
> ustr = str.GetStringUtf8();
> printf ("2) '%s'\n", ustr.c_str());
> pFont->WriteStringToStream(str, &output);
> pFont->WriteStringToStream(ustr, &output);
>
> painter.DrawText(10, 700, str);
> painter.DrawText(10, 660, ustr);
>
> painter.FinishPage();
> doc.Write("/tmp/test.pdf");
>
> output.EndAppend();
> printf ("%s: wrote %d bytes: '%.*s'\n", __FUNCTION__, (int)
> output.GetLength(), (int) output.GetLength(), output.Get());
>
>
test-pdfmm.pdf
Description: Adobe PDF document
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