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


"nonbreakingspace", "Agrave", "Atilde", "Otilde", "OE", "oe", "endash",
  "emdash", "quotedblleft", "quotedblright", "quoteleft", "quoteright",
  "divide", "lozenge", "ydieresis", "Ydieresis", "fraction", "currency",
  "guilsinglleft", "guilsinglright", "fi", "fl", "daggerdbl", "periodcentered",
  "quotesinglbase", "quotedblbase", "perthousand", "Acircumflex",
  "Ecircumflex", "Aacute", "Edieresis", "Egrave", "Iacute", "Icircumflex",
  "Idieresis", "Igrave", "Oacute", "Ocircumflex", "apple", "Ograve", "Uacute",
  "Ucircumflex", "Ugrave", "dotlessi", "circumflex", "tilde", "macron",
  "breve", "dotaccent", "ring", "cedilla", "hungarumlaut", "ogonek", "caron",
  "Lslash", "lslash", "Scaron", "scaron", "Zcaron", "zcaron", "brokenbar",
  "Eth", "eth", "Yacute", "yacute", "Thorn", "thorn", "minus", "multiply",
  "onesuperior", "twosuperior", "threesuperior", "onehalf", "onequarter",
  "threequarters", "franc", "Gbreve", "gbreve", "Idotaccent", "Scedilla",
  "scedilla", "Cacute", "cacute", "Ccaron", "ccaron", "dcroat"];
function adjustWidths(properties) {
  if (!properties.fontMatrix) {
    return;
  }
  if (properties.fontMatrix[0] === FONT_IDENTITY_MATRIX[0]) {
    return;
  }
  
  var scale = 0.001 / properties.fontMatrix[0];
  var glyphsWidths = properties.widths;
  for (var glyph in glyphsWidths) {
    glyphsWidths[glyph] *= scale;
  }
  properties.defaultWidth *= scale;
}
function adjustToUnicode(properties, builtInEncoding) {