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


"\x01\xDF" + 
      "\x00\x31" + 
      "\x01\x02" + 
      "\x00\x00" + 
      "\x00\x00\x06" +
      String.fromCharCode(properties.fixedPitch ? 0x09 : 0x00) +
      "\x00\x00\x00\x00\x00\x00" + 
      string32(ulUnicodeRange1) + 
      string32(ulUnicodeRange2) + 
      string32(ulUnicodeRange3) + 
      string32(ulUnicodeRange4) + 
      "\x2A\x32\x31\x2A" + 
      string16(properties.italicAngle ? 1 : 0) + 
      string16(firstCharIndex || properties.firstChar) + 
      string16(lastCharIndex || properties.lastChar) + 
      string16(typoAscent) + 
      string16(typoDescent) + 
      "\x00\x64" + 
      string16(winAscent) + 
      string16(winDescent) + 
      "\x00\x00\x00\x00" + 
      "\x00\x00\x00\x00" + 
      string16(properties.xHeight) + 
      string16(properties.capHeight) + 
      string16(0) + 
      string16(firstCharIndex || properties.firstChar) + 
      "\x00\x03"
    ); 
  }
  function createPostTable(properties) {