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


var unitsPerEm =
      override.unitsPerEm ||
      1 / (properties.fontMatrix || FONT_IDENTITY_MATRIX)[0];
    
    
    var scale = properties.ascentScaled
      ? 1.0
      : unitsPerEm / PDF_GLYPH_SPACE_UNITS;
    var typoAscent =
      override.ascent || Math.round(scale * (properties.ascent || bbox[3]));
    var typoDescent =
      override.descent || Math.round(scale * (properties.descent || bbox[1]));
    if (typoDescent > 0 && properties.descent > 0 && bbox[1] < 0) {
      typoDescent = -typoDescent; 
    }
    var winAscent = override.yMax || typoAscent;
    var winDescent = -override.yMin || -typoDescent;
    return (
      "\x00\x03" + 
      "\x02\x24" + 
      "\x01\xF4" + 
      "\x00\x05" + 
      "\x00\x00" + 
      "\x02\x8A" + 
      "\x02\xBB" + 
      "\x00\x00" + 
      "\x00\x8C" + 
      "\x02\x8A" + 
      "\x02\xBB" + 
      "\x00\x00" +