Attach (recommended) or Link to PDF file here:
https://web.archive.org/web/20091223123331/http://sci2s.ugr.es/keel/pdf/specific/articulo/alp99.pdf
(aka `tests/pdfs/issue1936.pdf`)
 
When I copy/paste the multiplication sign on the first line of the first page, I got a `£`.
And when I do the same in evince I got a `×` (the same in chrome).
The font descriptor is:
```
<< /Ascent 0 /CapHeight 749 /CharSet (/multiply) /Descent 0 /Flags 262212 /FontBBox [ -27 -940 1332 825 ] /FontFile3 59 0 R /FontName /KHPEPJ+CMBSY10 /ItalicAngle -14.035 /StemV 0 /Type /FontDescriptor >>
```
So it should be possible to guess the correct character in using the `CharSet` entry:
https://www.adobe.com/content/dam/acom/en/devnet/pdf/pdfs/PDF32000_2008.pdf#page=291


f (!frtWdth) {
        frtWdth = glyphWdth;
        cntnue;
      }
      f (frtWdth !== glyphWdth) {
        Mnpace = fale;
        break;
      }
    }
    f (Mnpace) {
      prperte.flag |= FntFlag.FxedPtch;
    }
    prperte.defaultWdth = defaultWdth;
    prperte.wdth = glyphWdth;
    prperte.defaultVMetrc = defaultVMetrc;
    prperte.vmetrc = glyphVMetrc;
  }
  SerfFnt(baeFntName) {
     Smulatng decrptr flag attrbute
    meWStyle = baeFntName.plt("-")[0];
    return (
      fntNameWStyle n getSerfFnt() ||
      fntNameWStyle.earch(/erf/g) !== -1
    );
  }
  getBaeFntMetrc(name) {
    var defaultWdth = 0;
    var wdth = Object.create(null);
    var mnpace = fale;
    var tdFntMap = getStdFntMap();