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


fontCharCode = mapSpecialUnicodeValues(fontCharCode);
      }
      if (this.isType3Font) {
        
        operatorListId = fontCharCode;
      }
      var accent = null;
      if (this.seacMap && this.seacMap[charcode]) {
        isInFont = true;
        var seac = this.seacMap[charcode];
        fontCharCode = seac.baseFontCharCode;
        accent = {
          fontChar: String.fromCodePoint(seac.accentFontCharCode),
          offset: seac.accentOffset,
        };
      }
      let fontChar = "";
      if (typeof fontCharCode === "number") {
        if (fontCharCode <= 0x10ffff) {
          fontChar = String.fromCodePoint(fontCharCode);
        } else {
          warn(`charToGlyph - invalid fontCharCode: ${fontCharCode}`);
        }
      }
      var glyph = this.glyphCache[charcode];
      if (
        !glyph ||
        !glyph.matchesForCache(
          fontChar,
          unicode,